There are so many flowers and grasses, but there are a few that can be named, many friends are not familiar with the plantain. Here we will enjoy the plantain pictures, while learning about it.
A, plantain morphological characteristics
1, annual or biennial herb. Taproot long, with most lateral roots, more or less fleshy. Rootstock short. Leaves basal rosulate, procumbent, obliquely spreading or erect; leaf blade papery, elliptic, elliptic lanceolate or ovate-lanceolate, 3-12 cm long, 1-3.5 cm wide, apex acute or slightly obtuse, margin shallowly undulate obtuse teeth, irregularly serrate or teeth, base broadly cuneate to narrowly cuneate, decurrent to petiole, veins 5-7, slightly concave on the upper side, distinctly raised on the abaxial side, both surfaces sparsely white pubescent; petiole 2-6 cm long, base enlarged into a sheath. Inflorescences 3-10+; peduncles 5-18 cm long, longitudinally striped, sparsely white pubescent; spikes finely terete, crowded distally, often interrupted at base, 6-12 cm long; bracts triangular-ovate, 2-3.5 mm long, concave, glabrous, keel broadly thickened, wider than the two lateral lamellae, not extended or extended to the tip.
2. Calyx 2-2.5 mm long, glabrous, keel broadly thickened, not extended to tip, anterior pair of sepals narrowly obovate-elliptic to broadly elliptic, posterior pair of sepals obovate-elliptic to broadly elliptic. Corolla white, glabrous, corolla tube as long as or slightly longer than sepals, lobes tiny, elliptic or ovate, 0.5-1 mm long, reflexed after flowering. Stamens inserted near the tip of the inner surface of the corolla tube, obviously outstretched with the style, anthers ovate-elliptic or broadly elliptic, 0.6-1.1 mm, apex with a broad triangular protuberance, white or greenish-white when fresh, turning light brown when dry. Ovules 5. Capsule ovate-elliptic to conical-ovate, 4-5 mm long, circumscissile above the base. Seeds 4-5, ellipsoid, flat ventrally, 1.2-1.8 mm, yellow-brown to black; cotyledons arranged dorsoventrally. Flowering May-July, fruiting July-September.
Second, plantain origin and distribution
1, produced in Nanjing, Yancheng and other places. Northeast, North China, Northwest, Henan, Hubei, Tibet and other provinces and regions have distribution. Harvesting and storage: all year round can be harvested, washed, fresh or sun-dried.
2, produced in Heilongjiang, Jilin, Liaoning, Nei Mongol, Hebei, Shanxi, Shaanxi, Ningxia, Gansu, Qinghai, Xinjiang, Shandong, Jiangsu, Henan, Anhui, Jiangxi, Hubei, Sichuan, Yunnan, Tibet. Born in grasslands, riverbanks, ditches, meadows, fields, and roadsides; 5-4500 m. Guangdong, Guangxi, Guizhou, Hainan, Sichuan, Yunnan, Xizang. Also in Korea, Russia (Siberia to the Far East), Kazakhstan, Afghanistan, Mongolia, Pakistan, Kashmir, and India. The type specimen is a cultivated plant of the Berlin Botanical Garden, Germany.
Third, plantain pharmacological effects
1. Diuretic effect: normal people take 10g of plantain decoction, there is a diuretic effect, but the total volume of the decoction and the amount of daily water intake is not documented, the lack of strict control. Normal people and rabbits served psyllium seed decoction is not obvious diuretic effect. Psyllium seeds also have no diuretic effect.
2. The role of the joint capsule: psyllium seed decoction injected a small number of times into the rabbit knee joint cavity, the first synovial inflammation, followed by connective tissue hyperplasia, so there is a loose joint capsule to restore the original tension of the possibility of clinical use for temporomandibular joint subluxation. Plantagoovata seeds from India contain a large amount of gum paste, which can be used as a volumetric laxative, and has the effect of lowering serum cholesterol in humans. Alcoholic extract can reduce the blood pressure of anesthetized dogs and cats, inhibit the isolated rabbit heart, frog heart, excitation of rabbit, rat and guinea pig intestinal tubes and can be inhibited by atropine, so it is thought to have a cholinergic effect. 5% Plantago ovata seed decoction of 0.05-0.2 ml injected into the rabbit knee joint cavity can promote the synovial synovial connective tissue hyperplasia of the joint capsule, which can make the joint capsule to restore the original relaxation of the tension. Psyllium decoction did not show diuretic effect on normal people, rabbits and rats.
The above is the basic information of psyllium I introduced for you, I hope it can help you.