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Characteristics of Paeoniaceae, Staphylinidae, Cruciferae, Polygonaceae
Paeoniaceae Paeoniaceae is a small family of the dicotyledonous subclass Pentaphyllum. Shrubs or rhizomatous perennial herbs. Leaves alternate, dichotomous ternate compound, without stipules. Flowers large, often solitary terminal, bisexual, actinomorphic, usually pollinated by beetles. Sepals 5, persistent. Petals 5-10, imbricate, white, pink, purple, or yellow. Stamens numerous, centrifugally developed, anthers extrorse, oblong. Disk fleshy, annular or cupular. Carpels 2-5, divided, ovaries with 2 rows of ovules along the ventral suture line, forming follicles with leathery pericarp after fertilization. Seeds large, reddish purple, with aril and abundant endosperm. There is only one genus and about 35 species of peonies, mainly in Eurasia, a few in western North America. There are 11 species in China, distributed in SW, NW, C, N, and NE China. The woody peony group is a specialty of China. Representative species of this family: ① Peony. It is a small shrub 1 to 2 meters high, with very large two- to three-volume compound leaves and three-lobed leaflets. The flowers are borne singly at the top of the stem, 20 to 30 centimeters in diameter, and have colors such as yellow, purple, and red-white, etc. The discs are cup-shaped, and the four to five carpels are completely wrapped around them. The root bark is called tanpi and is often used as an emmenagogue and tonic. Beautiful flowers, for the garden treasures, Henan Luoyang and Shandong Heze and other places to cultivate the most varieties. ② Paeonia lactiflora. Distributed in China Shaanxi, Shanxi and northern Hebei, Nei Mongol and Heilongjiang, as well as the Russian Siberian area, is a perennial herb with rhizomes, two times ternate compound leaflets lanceolate, margins with bony denticles, flowers terminal and axillary, 10 centimeters in diameter, white, pink or purple, disk annular, enclosing only the base of the group of carpels. Paeonia lactiflora has been cultivated in China for more than 2000 years. The root bark is known as Paeonia alba, which has analgesic and antipyretic properties

The Staphylinidae family has 88 genera and about 2,000 species of plants distributed in temperate regions of the globe, with a few species distributed in tropical mountainous regions and even in the frigid zones, all of which are herbaceous, mainly in Europe, Asia and the Mediterranean region, but there is also a species of Colobanthus quitensis that grows in Antarctica and is one of only It is one of the only two dicotyledonous plants in Antarctica. China has 32 genera and about 400 species. Specifically, most of the plants in the family Staphylinidae are annuals, but there are also perennials, but the above-ground parts die off every year or have woody rhizomes underground, and even a few species are small trees. Some species make good garden ornamentals. Herbs, sparsely subshrubs; leaves opposite, entire; flowers bisexual, actinomorphic, solitary or arranged in cymes; sepals 4-5, separate or united; petals 4-5, scarce; stamens 8-10; ovary superior, 1-loculed, sparsely 2-5-loculed, with a very large number of ovules, borne on a central separate placenta; Styles 2-5; fruit a capsule, rarely a berry. Staphylocarpaceae are all simple leaf-opposed, flowering in dichasial cymes, petals often clawed, usually 5-merous, and a few 4-merous.

Morphological features

1 family of the dicotyledonous subclass Dianthus. Herbs, mono-, biennial or perennial, sparsely small shrubs or subshrubs. Stems usually inflated at nodes. Leaves simple opposite, sometimes with membranous stipules. Flowers bisexual, rarely unisexual, radiant

Umbels, panicles, or aggregates capitate. Flowers sometimes with closed fertilization; sepals 4-5, free or united; petals 4-5, rare, absent, free, clawed or not; stamens 8-10, rare 2-5; disk small, some glandular; receptacle sometimes amphitropous; ovary superior, 1-loculed, rare 2-5-loculed, with erect central placentation. Ovules 1 to numerous; styles 2 to 5. Fruit usually a capsule, sparsely achene or berrylike. Seeds 1 to numerous, mostly reniform, wingless or only narrowly winged, surface smooth or warty, containing powdery endosperm. Chromosome base x=7~81.

Cruciferae Cruciferae, about 375 genera, 3200 species, widespread in the world, mainly produced in the north temperate zone, especially in the Mediterranean region, there are 96 genera in our country, about 411 kinds of species, specifically all the genera : Alliaria....... Onion mustard Alyssum........ Aphragmus...... Arabidopsis.... Arabis......... Armoracia...... Horseradish Atelanthera.... Barbarea....... Mountain mustard Berteroa....... Berteroella.... Brassica....... Braya.......... Bunias......... Spoonbill genus Cruciferae

Camelina....... Linum usitatissimum Capsella....... Cardamine...... Cardaria....... Cheiranthus.... Cinnamon bamboo scented genus Chorispora..... Ion mustard Christolea..... Highland mustard Clausia........ Cochlearia..... Rock Capsicum Coelonema...... Conringia...... Coronopus...... Crambe......... Cryptospora.... Descurainia.... Dilophia....... Dimorphostemon.Diplotaxis..... Dipoma......... Diptychocarpus.Dontostemon.... Draba.......... Draba hebecarpaEruca.......... Arugula Erysimum....... Sugar mustard Euclidium...... Eutrema........ Goldbachia..... Hedinia........ Hemilophia..... Hesperis....... Hymenolobus.... Iberis......... Flexiflora Isatis......... Woad genus Lachnoloma..... Lepidium....... Leptaleum...... Lignariella.... Litwinowia..... Lobularia...... Loxostemon..... Macropodium.... Malcolmia...... Matthiola...... Violet Megacarpaea.... Megadenia...... Double-fruited shepherd's purse Microsisymbrium 小蒜芥属 Microstigma.... Nasturtium..... Neomartinella... Corydalis Neslia......... Orychophragmus. Pachypterygium. Parrya......... Parryodes...... Pegaeophyton... Phaeonychium... Tibetan mustard genus Platycraspedum. wide-framed shepherd's purse genus Ptilotricum.... Pugionium...... Sand mustard Pycnoplinthus... Cluster mustard genus Raphanus....... Radish Rorippa........ Nasturtium Sinapis........ White mustard Sisymbrium..... Garlic mustard Smelowskia..... Celery leaf caper genus Solms-Laubachia clumping phone genus Sophiopsis..... Spirorhynchus... Staintoniella... Sterigmostemum.Stick Mustard Stevenia....... Auricularia Stroganowia.... Synstemon...... Syrenia........ Taphrospermum. Tauscheria..... Tetracme....... Thellungiella... Salt mustard genus Thlaspi........ Cress genus Torularia...... Candida mustard genus Turritis....... Flagstaff mustard Yinshania...... Yinshania Among them, Brassica and radish are the main vegetable and oilseed crops in China. Herbs annual to perennial, a few shrubs or trees, often simple, a few compound, estipulate, with simple or forked hairs, sometimes glandular hairy or glabrous; inflorescences racemes or corymbs; flowers bisexual, often ebracteate; sepals 4, erect to spreading, in 2 pairs, decussate, sometimes inner whorl basally saccate; petals 4 (rarely degenerate), cruciate, alternate with sepals, yellow, white, or purple, often clawed; Stamens 6, rarely due to degeneration into 4, 2, or 1, rarely more than 6, tetradynamous, outer whorl 2 short, inner whorl 4 long, anthers 2-loculed (rarely 1-loculed), filaments sometimes winged, toothed, or appendaged; lateral nectaries borne on short stamen bases often present in a variety of shapes, with or without a median denser gland; ovary with 2 contiguous carpels, 1-2-loculed, with 1 to many lateral ovules, borne on 2 lateral membranes placenta; separated by a membranous pseudoseptum; style single, sometimes absent, stigma often capitate, indehiscent to bifid; fruit a longhorn or shorthorn, dehiscing in 2-fid segments from below upward, or indehiscent, sometimes splitting transversely into 1- to several-seeded segments, pericarp membranous to leathery, flat or swollen, sometimes with ridges, wings, or appendages, glabrous or hairy, with 1- to many parallel veins; 1- to many seeds in 1 ) cotyledons folded (conduplicate). FRPS: 33:1 The fruit is angiosperm (with long and short angiosperms). Seeds are small, without endosperm, with smooth or ornamented surfaces and sometimes winged margins. This is a monotypic pollen family. Pollen grains are generally 3-grooved, globose to suboblong; the longest axis is often 20-30 micrometers, sometimes more than 50 micrometers. The outer layer is thicker than the inner layer, generally reticulate, with single (or double) rods. Sometimes 2-grooved, 4-grooved wrinkled, 6-wrinkled, occasionally with irregular pollen. Chromosome base x = 4-19. 375 genera and 3200 species, widespread worldwide, mainly distributed in the north temperate zone and more in the Mediterranean region. China produces 95 genera and 425 species, 124 varieties and 9 variants, which are distributed throughout China, mostly in the mountainous and hilly regions of the southwest, northwest, and northeast, and less in the plains and coastal areas. Among them, half-ridged shepherd's purse, snakehead shepherd's purse, broad-framed shepherd's purse, burrowing silk mustard, cordial leaf mustard, stamen mustard, yinshan shepherd's purse are endemic to China

Polygonaceae Polygonaceae Geminophyta is a family of polygonal plants. Herbs annual or perennial, rarely shrubs or small trees. Stems usually with expanded nodes. Leaves simple, alternate, with ocrea. Flowers bisexual, rarely unisexual, actinomorphic; inflorescences composed of several cymules arranged in racemose, spicate, or paniculate rows, flowers sometimes solitary; tepals 3-6, often arranged in two whorls; stamens 3-9, rarely 16, with disk; pistil 1, ovary superior, 1-loculed, 1-ovuled. Achenes 3-angled or biconvex, wholly or partly enclosed in persistent perianth; embryo curved or erect, endosperm abundant. Chromosomes:

X=7-11, 17. ca. 1200 species in 50 genera, mainly in the N temperate zone, a few in the tropics. China produces 11 genera and more than 230 species. The genus Polygonum is distributed throughout the country; the genus Rhubarb is distributed in the mountainous regions of northwest, southwest and north China; the genera Shaquanzhao and Wood Polygonum are distributed in the desert and semi-desert regions of northwest China; the genus Icelandic Polygonum is distributed in the high mountainous regions of northwest China and the Qinghai-Tibetan Plateau; the genera Polygonum pteronyssinus and Polygonum samaritanum are endemic genera in China.

Polygonaceae (Polygonaceae), dicotyledonous plants, 40 genera, 800 species, mainly produced in the north temperate zone, a few in the tropics, China even the introduction of 14 genera, about 228 species, specifically: Antenoron...... Atraphaxis..... Calligonum..... Fagopyrum...... Buckwheat Fallopia....... Koenigia....... Icelandic Polygonum Oxyria......... Polygonum spp. Polygonaceae

Parapteropyrum. Polygonum spp. Polygonum...... Polygonum spp. Pteroxygonum... Pteroxygonum spp. Reynoutria..... Rheum.......... Rumex.......... The genus Sourdough is found throughout the country, some of which are used for food, such as buckwheat, some of which are used for medicine, and some of which are used for ornamental purposes. Generally, the species grows in paddy fields, man-made ditches or wetlands. Herbs, sometimes subshrubs or slightly woody vines, stems often inflated at nodes; leaves alternate, simple, entire; stipules usually membranous, sheathlike or leaflike, wrapping or penetrating stems; flowers usually bisexual, sometimes unisexual and heteroecious, arranged in a variety of inflorescences; perianth arranged in whorls of 2, segments 3-6, separate or connate, often petaloid, persistent; stamens 3-9, sparsely more, with perianth, but not always as many as perianth. sparsely more, opposite perianth segments; ovary superior, 1-loculed, compressed or triquetrous on both sides, styles 2-4, separate or united at base, stigmas enlarged or capitate or divided into filiform or fimbriate, with 1 ovule; achenes biconvex, triquetrous, or suborbicular, wholly or partly enclosed in persistent calyx; seeds 1, with starch-rich endosperm. Medicinal plants in this family, such as palm-leaved rhubarb and medicinal rhubarb, are traditional Chinese medicines; bianzhu, heshouwu, and boxing polygonum are also used in Chinese medicine. Cultivated crops such as buckwheat. Ornamental plants are red polygonum, coral vine and so on. Some species of plants in this family are honey plants.

Basic Morphological Characteristics

Dicotyledon (Magnoliopsida), Dianthus subclass Caryophyllidae, Polygonaceae Polygonales 1 family. Annual or perennial herbs, sparsely shrubs or small trees. Stems usually with expanded nodes. Leaves simple, alternate, with ocrea. Flowers bisexual, rarely unisexual, actinomorphic; inflorescence composed of several cymules arranged in racemes, spikes, or panicles, flowers sometimes solitary; tepals 3-6; stamens 6-9, rarely 16, with disk; pistil 1, ovary superior, 1-loculed, styles 2-4. achenes ovate, 3-angled or flattened, usually enclosed in persistent perianth; embryo curved or erect, endosperm abundant. About 40 genera and 800 species, mainly in the N temperate zone, a few in the tropics. China produces 11 genera and more than 200 species. The genus Polygonum is distributed throughout the country; the genus Rhubarb is distributed in the mountainous areas of northwest, southwest and north China; the genera Sandy Rhubarb and Woody Rhubarb are distributed in the desert and semi-desert areas of northwest China; the genus Icelandic Rhubarb is distributed in the high mountainous areas of northwest China and the Qinghai-Tibetan Plateau; the genera Polygonum pteronyssinus and Polygonum samaritanum are endemic genera in China. The pollen of Polygonaceae is subglobose or globose to oblong, and is multi-type, i.e., in the same genus, the difference between species is very obvious, the pollen grains have 3 grooves, 3 pore grooves, scattered holes, scattered grooves holes, etc., and the reticulation on the outer wall is also multi-type and diverse, mainly spiny, coarse reticulation, fine reticulation, etc. The pollen is transmitted by insect vector, or by the pollinators of the family. This family of plants by insect pollination or wind pollination, such as polygonum, rhubarb genus in the base of the stamens have nectar, with a capitate stigma, in order to facilitate insect pollination; acid mold genus of flowers pendulous, slender pedicel, with a large paintbrush-like stigma, these features are convenient for wind pollination.

General

The Polygonaceae are a very natural group. Polygonaceae is closely related to some families in the Central Seed Order (Centrospermae). The family is divided into three subfamilies and six clades.

Rumicoideae

①American Polygonum (Eriogoneae), not produced in China; ②Rumiceae.

Polygonaceae (Polygonoideae)

①Polygonum woodii (Atraphaxideae

Sea Grape subfamily (Coccoloboideae):

①Polygonaceae (Triplarideae), cultivated in China; Sea Grapes

②Sea Grape tribe ( Coccolobeae), cultivated in China. This family of medicinal plants such as palm-leaved rhubarb, medicinal rhubarb, etc. is a traditional Chinese medicine; Bianzhu, Heshouwu, boxing polygonum is also a traditional Chinese medicine. Cultivated crops such as buckwheat. Ornamental plants are red polygonum, coral vine and so on. Some species of plants in this family are honey plants.

Editorial section of the main genera and species

Calligonum L., family Polygonaceae, 80 species, distributed in North Africa, West Asia and Southern Europe, China has C. dielsianum Hao and C. mongolicum Turcz. and other more than 20 species, produced in Inner Mongolia, Ningxia, Gansu, Qinghai, and Xinjiang. Rigid, much-branched shrubs; leaves alternate, linear, conical, or obsolete; sheathlike stipules short; flowers bisexual, solitary or several in sparse bouquets; tepals 5, flattened; stamens 12-18; ovary 4-angled; nut prominent, 4-angled, horns winged, prickly hairy, or with a coriaceous projection; seeds long ellipsoid, terete, or 4-angled. Distribution World: 80 species; China: 20 species

Coral Vine

Antigonon Endl. Coral Vine, Polygonaceae, ca. 8 species, occurs in tropical America, and 1 species of Coral Vine, A. leptopus Hook. et Arn. has been introduced into China, and is often cultivated for ornamental purposes in Taiwan, Fujian, the two provinces of Taiwan, Guangdong, and Yunnan. Lianas, slightly woody; leaves royal, base cordate or hastate; inflorescence axis apically extended into tendrils; flowers bisexual, pink, sometimes white, arranged in racemes; perianth lobes 5; stamens 7-8, filaments basally connate; styles 3; achenes large, 3-angled, enclosed in enlarged, papery persistent perianth. Distribution World: 8 species; China: 1 species

Sea Grape

Coccoloba P. Br. Sea Grape is a genus of 150 species in the Polygonaceae family, distributed in tropical and subtropical America, with one species of Sea Grape, C. uvifera (L.) L., introduced in Taiwan, China, for ornamental use. Trees or shrubs, erect or climbing; leaves alternate, variably shaped, entire, leathery; leaf sheaths usually minute; flowers bisexual or unisexual, minute, numerous, clustered on rachis of terminal racemes, each cluster with minute, tubular bracts; perianth 5-lobed, perianth tube extremely enlarged after anthesis; stamens 8; ovary trigonous-ovate, styles 3, short, stigmas capitate; nuts 3-angled, in a succulent, berry-like perianth Envelope. Distribution World: 150 species; China: 1 species

Koenigia L. Icelandica

Koenigia L. Icelandica, Polygonaceae, 7 species; distributed in the Arctic region, the Himalayan region, temperate regions of E Asia, and South America, with one species of Icelandic Polygonum K. islandica L. in China, from SW to NW. Herbs annual, slender; leaves small, stipitate, long elliptic to obovate; flowers small, arranged in axillary bouquets; perianth 3-lobed; stamens 3, inserted on perianth; stigmas 2-3; achenes raised on both surfaces. The genus is very similar to Polygonum except that the perianth is 3-lobed and the stamens, 3, are alternate with the perianth lobes. Family Polygonaceae; Distribution World: 7 species; China: 1 species

Buckwheat

Fagopyrum Mill. Fagopyrum Mill. is a genus of 15 species of buckwheat in the Polygonaceae family distributed in temperate regions of Eurasia, of which there are 8 species in China, produced in the northern and southern provinces, of which buckwheat, F. sagittatum Gilib. is a cultivated food crop. Herbs annual or perennial; stems finely furrowed; leaves alternate, triangular or arrow-shaped, entire; flowers bisexual, arranged in terminal and axillary racemes or corymbs; perianth white or red, 5-lobed, not accrescent after anthesis; stamens 8, outer whorl 5, inner whorl 3; styles 3; ovary 3-angled; achenes 3-angled, projecting conspicuously beyond the persistent perianth. Family: Polygonaceae; Distribution World: 15 species; China: 8 species

Oxyria Hill Polygonum spp.

Oxyria Hill Polygonum spp. is a genus of two species of polygonum in the family Polygonaceae, widely distributed in the alpine and polar regions of Asia, Europe, and the Americas, and is found throughout China in the northeast, northwest, and southwest. The whole herb is used in medicine, which can eliminate heat and promote dampness. Herbs perennial; stems erect, branched above; leaves basal or partly cauline, reniform or cordate-orbicular; flowers bisexual, arranged in panicles; perianth segments 4, the inner 2 larger; stamens 6, filaments short; ovary laterally compressed, styles 2, stigmas brush-like; achenes raised on both sides, margins winged. Family Polygonaceae; Distribution World: 2 species; China: 2 species

Polygonum

Polygonum L. Polygonum, family Polygonaceae, with 300 species in the broad sense and 50 in the narrow sense, is widely distributed throughout the globe, with about 120 species in China, which are produced in all provinces, and some species are used in medicine. Herbs or shrubs; stems often swollen at the nodes; leaves alternate; stipules sheathing, membranous; flowers small, borne on short, nodding stalks, arranged in racemes, spikes, or heads; perianth 4-6-lobed, petaloid and persistent; stamens 3-9, often 8; ovary usually 3-angled, but also raised on both surfaces, with 1 ovule and 2-3 styles. Achenes 3-angled or raised on both sides. Family: Polygonaceae; Distribution: World: 300 species; China: 50 species

Homalocladium (F. Muell.) Bailey, Polygonaceae, with only one species of Polygonum platycladum, H. platycladum (F. Muell.) Bailey, is native to the Solomon Islands, and is also cultivated for ornamental use in gardens in China. Ornamental gardens. Erect shrub; branches flattened, nodding and linear; leaves small, sometimes reduced, often divided at the base; flowers small, bisexual, 1-7 clustered into sessile fascicles borne on branch nodes; perianth 4-5-parted; styles 3; achenes triangular, smooth, berrylike. Family Polygonaceae; Distribution World: 1 species; China: 1 species

Pteroxygonum Damm. et Diels Pteroxygonum Damm. et Diels Pteroxygonum Damm. et Diels is a genus of polygonum in the family Polygonaceae, with only one species of Pteroxygonum giraldii Damm. et Diels, from NW and N China. Woody vine; leaves long-petiolate, cordate-triangular; flowers bisexual, shortly stalked, arranged in pendulous racemes; perianth 5-lobed, not enlarged after flowering; stamens 8; ovary 3-angled, styles 3; achenes 3-angled, winged along the ribs, with 3 angular appendages at the base; fruiting pedicels 2-narrowly winged. Family Polygonaceae; Distribution World: 1 species; China: 1 species

Rheum L. Rheum L. is a genus of about 50 species of polygonum, Polygonaceae, found in temperate and subtropical Asia, with more than 30 species in China, from the southwest to the northeast of the country, of which R. officinale Baill. is one of the most famous Chinese medicines. Perennial, stout herbs; rhizomes slightly woody; stems erect, terete, hollow; leaves basal and cauline, usually long-petiolate, blades large, entire or divided; ocrea well-developed; flowers bisexual, light green or slightly white, small, numerous, arranged in paniclelike bouquets or racemes; perianth 6-lobed, widely spreading, not accrescent when fruiting; stamens 9 (6-8); styles 3; achenes strongly winged. Family Polygonaceae; Distribution World: 50 species; China: 30 species

Rumex L., Polygonaceae, broadly 200 species, narrowly 170 species, widespread worldwide, mainly in the north temperate zone, with more than 30 species in China, both north and south, of which the young leaves and stems of R. acetosa L. are used for vegetable consumption. Herbs annual or perennial; stems largely leafy; leaves variously shaped, sometimes hastate, entire or rugose in some species; flowers bisexual or unisexual, light green, stipitate, arranged in axillary bouquets or whorls of branched or unbranched racemelike inflorescences; perianth 6-parted, the outer 3 small and recurved, the inner 3 large, enlarged and winged when fruiting, with a small verruca at the dorsal end of one or all of the wings of some species Stamens 6; ovary 3-angled, with 1 basal ovule, styles 3, stigmas fimbriate; achenes usually enclosed in enlarged inner whorl of tepals. Family Polygonaceae Distribution World: 200 species; China: 170 species

Triplaris Loefl. ex L. Polygonaceae, Polygonaceae, 25 species, from tropical America, with one species introduced in Yunnan, China. Small trees, branches hollow, tubular; leaves alternate, blades broad; leaf sheaths caducous; flowers arranged in branched or unbranched spikes; flowers unisexual, borne in a spathe-like bract; perianth funnelform, segments 6, subequal or inner whorls of the filaments smaller; stamens 9, inserted at the top of the perianth tube; ovary 3-angled, styles 3; nut 3-angled, enclosed at the base of the perianth; seeds ovate-triangulate. Family Polygonaceae; Distribution World: 25 species; China: 1 species

Parapteropyrum A.J. Li The genus Parapteropyrum, Polygonaceae, contains only one species of Polygonum tibeticum A.J. Li, from Tibet, China. (See Journal of Plant Taxonomy 19: 330, 1981.) Family Polygonaceae Distribution World: 1 species; China: 1 species

Editorial Section Representative Plants

Shakaojiao

Scientific Name: Calligonum mongolicunl Shakaojiao

Alias: Hairgrass Family: Polygonaceae Generation: Shakaojiao Native Distribution: Distributed in Gansu, Xinjiang and Nei Mongol in China Morphological characters: old branches grayish white, spreading. 1-year-old branches herbaceous, green, jointed. Leaves bar-shaped, ocrea membranous, 3 clustered in leaf axils. Achenes broadly ellipsoid. Flowering period May-June. Growth habit: Extremely tolerant of heat, drought and cold. Strong germination, after being buried by quicksand, it can still produce adventitious roots and buds from the stem. Mostly born in sandy land, Gobi beach, dry riverbed and gravel land in front of mountains. Landscape use: the sand date palm is a windbreak and sand-fixing plant. Flowers, fruits and old branches have a certain ornamental value, suitable for decorating the park. It can also be planted in pots. The whole plant can be used as medicine. Cultivation and propagation: propagated by seeds or pressed strips. It is also found in Inner Mongolia, Shanxi and other provinces. Morphological characters: Stems twining or suberect, herbaceous at first, becoming woody or nearly so in 1-2 years, up to several meters long. Leaves alternate or clustered, oblong-ovate, apex acute, base shallowly cordate, both surfaces smooth and glabrous. Inflorescences paniculate, terminal. Bracts membranous, containing 3-6 flowers. Flowers small, white, perianth 5-parted. Fruit ovate-trigonous, black-brown. Landscape use: Mountain buckwheat blooms in a snowy white, slightly fragrant. It is a good climber and nectar plant. Cultivation and propagation: can be sown or cuttings propagation, germination rate is very high.

Coral Vine

Scientific Name: Antigonon leptopus Alias: Crown of Crowns, Crested Gemstone, Vine of Love, Lian Li Vine, Red Coral Vine Coral Vine

Family: Polygonaceae Genus: Coral Vine Origin and Distribution: Native to Mexico. Morphological features: perennial evergreen vine with vines up to 10m long. It is a perennial evergreen vine with trails up to 10 m long and thick masses. The stems have ribs and tendrils. Leaves are ovate or ovate-triangular, base cordate. Inflorescences racemose, terminal or axillary, inflorescence axis extends into tendrils; flowers light red or white. There are heavy horticultural varieties. Growth habit: Prefers warm, sunny, moist, fertile acidic soil. Flowering period from March to December. Landscape use: coral vine flowers and slightly fragrant, suitable for vertical greening. Cultivation and propagation: seeding method of propagation, seed fall can be natural seedlings.

Shamu Polygonum

Scientific Name: Atraphaxis frutescens Alias: Shrub Polygonum, Wild Buckwheat Flower Shamu Polygonum

Family: Polygonaceae Genus: Polygonum Morphological Characteristics: Multi-branched. Leaves broadly lanceolate, light green, subleathery, margins often curling downwards. Racemes, petals purple-brown. Achenes. Fruit achenes. Growth habit: drought-resistant, cold-resistant, especially resistant to wind erosion, sand burial, where sandy ground, flowing sand dunes and river beds are seen growing. Landscape use: sand wood polygonum flowers first bloom bright red, shaped like buckwheat flowers. The flowers are a source of nectar. The shoots are good fodder for sheep and camels. Cultivation and propagation: Propagation by seed or cuttings.

Red Polygonum

Scientific Name: Polygonum orientale Alias: Oriental Polygonum, Oriental Polygonum, Red Polygonum

Family: Polygonaceae Genus: Polygonum Native range: Native to China and Australia, born on roadsides and wetlands near water. Morphological features: annual herbaceous plant. The plant is 2-3 m tall, with erect, well-branched stems, densely hairy. Leaves are large, ovate-lanceolate to broadly ovate, nearly rounded at the base, entire and hairy. Pedicel long. Panicles, about 9cm long, terminal or axillary, soft and recurved; florets dense, bright pink or rose-red. Growth habit: prefer sunshine, warmth and humidity, tolerate barrenness, do not choose the soil, in the shady and wet land in patches of wild. Flowering period from June to August. Landscape use: red polygonum branches and leaves tall, sparse and free, is quite interesting garden ornamental plants, can also be used as flower arrangement materials. Cultivation and propagation: seeding method of propagation, in the spring in March to April.

Rheum officinale

Scientific Name: Rheum offcinale Baill. Alias: Horseshoe Yellow Medicinal Rhubarb Family: Polygonaceae Genus: Rheum officinale Place of Origin and Distribution: Mainly found in the northwest and southwest of China, it is an important medicinal plant. Morphological features: Perennial herb. Landscape use: The inflorescences are large and beautiful and can be planted in gardens for ornamental purposes.

Tiger's Bane

Scientific Name: Polygonum cuspidatum Sieb.et Zucc Alias: Huang Yao Zi, Bamboo Ginseng, Banzhuang Root, Tiger's Bane

Family: Polygonaceae, Genus: Polygonum Normal: Native to China, North Korea, South Korea and Japan. Characteristics: Polygonaceae, a shrubby, persistent herb. The leaves are alternate, ovate or broadly ovate. Dioecious, flowering in summer and fall, panicle, terminal or axillary, red or pink, pleasing flowers. Habitat: It is distributed in most areas south of the Yellow River in China, preferring to be born in valleys by streams. It prefers coolness, and is suitable for garden landscaping and slope protection in southern China. Cultivation of soil to sandy loam is the best, light needs to be good. Pruning after flowering, if the plant is aging in the spring to apply strong pruning. Avoid high temperature and high humidity, the growth temperature is about 12-22 ℃. Cultivation and reproduction: seeding, planting method, spring is the right time.

Bamboo Polygonum

Scientific Name: Homalocladium platycladium Alias: Polygonum biannosum, Polygonum biannosum, Polygonum multiflorum Family: Polygonaceae Genus: Polygonum biannosum Bamboo Polygonum

Origin and Distribution: From the Solomon Islands, South Pacific Ocean. Morphological characters: Old branches terete, nodding, dark brown, with longitudinal lines; young branches flattened, nodding, green, resembling leaves. Leaves reduced, emarginate or with several lanceolate leaflets, base triangular-cuneate, stipules reduced to lines. Racemes clustered at nodes of new branches, small, light red or greenish white. The fruit is a red or lavender berry. Growth habit: Not hardy, greenhouse potted plants. It is shade tolerant and should not be exposed to direct light. Does not tolerate moisture and needs well-drained soil. Requires high humidity in the air. Landscape use: Bamboo Polygonum is a bushy plant with flattened, bright green stems and a peculiar shape. Generally potted in greenhouses for indoor decoration; in the warm ground can also be cultivated in the garden, garden landscape. Cultivation and propagation: propagation of young stem cuttings is the main.