The answer is as follows:

Leave the roots (heads) directly or leave the seeds when they grow.

Hollow cabbage is introduced as follows:

Ipomoea aquatica (Latin name: Ipomoea aquatica Forsk), is a plant of the genus Senecio in the Photocalyx group. In Fujian, Guangxi, Guizhou, Sichuan called hollow heart vegetable, Fujian called Tongcaihuai, Huayuai, Jiangsu, Sichuan called Tengtengcai, Guangdong called Tongcai.

This species is native to China and is now widely cultivated as a vegetable, or sometimes escapes into the wild. China's central and southern provinces are commonly cultivated, less in the north, suitable for growing in a warm and humid climate, fertile and wet soil places, not cold, frost stems and leaves withered. Distribution throughout tropical Asia, Africa and Oceania. In addition to vegetables for food, but also for medicinal purposes, internal solution to dietary poisoning, external treatment of fractures, ascites and anonymous swelling. Water spinach is also a better feed.

Chinese name

Ipomoea aquatica

Latin name

Ipomoea aquatica Forssk.

Alias

Hollow cabbage, green leaf, green leaf, green leaf, green leaf, green leaf, green leaf

Boundary

Botanical world

Portal

Peridium

Engraved angiosperms Phylum

Organism

Dicotyledonaceae

Sub-Organism

Subclass Chrysanthemum

Organism

Epimedium

Family

Cymbolidae

Group

Panthera

Genera

Panthera spp.

Species

Ipomoea

Tongkatsu

Tongkatsu

Panthera spp. /p>

Region of distribution

Southeast Asia

Morphological features

Annual herb, trailing or floating in water. The stem is cylindrical, with nodes, hollow between the nodes, rooting at the nodes, glabrous.

Leaf blade varies in shape and size, ovate, long ovate, long ovate-lanceolate or lanceolate, 3.5-17 centimeters long, 0.9-8.5 centimeters wide, apical tip acute or acuminate, with a small mucro, the base cordate, hastate, or aristate, occasionally truncate, entire or undulate, or sometimes with a few coarse teeth at the base, both surfaces subglabrous or occasionally sparse pilose; petiole is 3-14 centimeters, glabrous.

Cymes axillary peduncles 1.5-9 cm long, pilose at base, glabrous upward, with 1-3(-5) flowers; bracts scalelike, 1.5-2 mm long; pedicels 1.5-5 cm long, glabrous; sepals subequal, ovate, 7-8 mm long, obtuse at tip, mucronulate, glabrous outside; corolla white, light red or purple-red, funnelform, 3.5-5 cm long; stamens unequal, ovate, 7-8 mm long, obtuse at tip, glabrous outside; corolla white, light red or purple-red, funnelform, 3.5-5 cm long. ～5 cm; stamens unequal, filament base hairy; ovary conical, glabrous.

Capsules ovoid to globose, ca. 1 cm in diameter, glabrous. Seeds densely pubescent or sometimes glabrous. [1]

Growth habit

Ipomoea aquatica is native to the south, preferring a warm, humid climate, tolerating heat, and intolerant of frost, and can be grown from April to October in the Yangtze River Basin provinces.

Geographic distribution

This species is native to China, where it is widely cultivated as a vegetable or sometimes in the wild. It is commonly cultivated in the central and southern provinces of China. It is distributed throughout tropical Asia, Africa, and Oceania. [1]

Species classification

Ipomoea aquatica is cultivated in varieties, some cultivation conditions are divided into water spinach (also known as small-leafed species or large water spinach) and dry water spinach (also known as large-leafed species or small water spinach), and some are divided into white-flowered species (plant green, flowers white), purple-flowered species (plant ministries slightly violet, flowers light purple).