wanton(shuǐ xìng yáng huā)

Potherb

The synonym of water-borne poplars (plants) generally refers to potherb. This entry is reviewed by the project of "popular science China" science encyclopedia entry compilation and application.

Cauliflower poyensis (scientific name: Otteliaacuminatavar.crispa ）It is a plant of the genus cauliflower in hydrocharidae. Submerged herbs. Stem shortened. The petiole length varies with the depth of water. The length of petiole varies from 200-300 cm in deep lake to 4-20 cm in shallow water. The petiole is usually prickly on the petiole and along the vein of leaf back. Cauliflower is produced in Lugu Lake, Yunnan Province. The flowering and fruiting period is from May to October, and the flowers are white.

morphological character

This variety is very similar to the original variety in that its leaves are longer and narrower, the edges of which are undulate and retrovolved, 90 cm long and less than 6 cm wide, the base of which is sharply narrower, truncate, round or shallow heart-shaped, often extending downward into wings; the mature fruit is curved spindle rather than conical. The flowering and fruiting period is from May to October.

Herbs annual or perennial, rhizome short. The leaves are basal, petiolate and sheathed at the base. The leaves are banded, lanceolate, broadly ovate, suborbicular or heart-shaped, apex obtuse, acute or acuminate, base cuneate, truncate or heart-shaped; the veins are 3-11, parallel or arc-shaped, connected by small parallel transverse veins, and the midvein is obviously raised. Flowers bisexual, if unisexual, dioecious. The spathe is elliptic or ovate, with 6 or more ridges, 2-6 wings, sometimes without ridges and wings. In addition, there are rows of spines or nodules, containing 1 or more flowers and pedicels. Bisexual or female flowers with short pedicels or sessile, male flowers with longer pedicels; sepals 3, linear, oblong or ovate, green, with membranous margin; persistent petals 3, circular, oblong, wide obovate or obcordate, 2-3 times larger than sepals, white, yellow, purple, or other colors (purple rare), stamens 3-15, filaments linear, flat, anthers oblong, connective In male flowers, except for stamens, there are usually 3 staminodes, 2-lobed or undivided, and there are globules in the center of the staminodes. In female flowers, there are 3, 6, 9 carpels in the lower ovary, which are composed of 3, 6, 9 carpels There are usually three staminodes.

The fruit is long cylindrical, spindle or cone-shaped; the peel is thick, with longitudinal ribs or wings, with flesh convex or flesh spines, containing gum. Seeds numerous, oblong or fusiform; testa thick, hairy or glabrous.

About 21 species of this genus are distributed in tropical, subtropical and temperate zones. There are 4 species and 4 varieties in China. They are mainly distributed in Guangdong, Hainan, Guangxi, Sichuan, Guizhou and Yunnan. Some species can be distributed in Northeast and Northwest China.

Distribution range

Guangdong, Hainan, Guangxi, Sichuan, Guizhou and Yunnan are endemic to China. In lakes, ponds, ditches and paddy fields.

Main value

Aquatic plants, seaweed, fish feed, pig feed.

Related varieties

Potherb (variety)

This variety is very similar to the original variety in that its leaves are longer and narrower, the edges of which are undulate and retrovolved, 90 cm long and less than 6 cm wide, the base of which is sharply narrower, truncate, round or shallow cordate, often extending downward into wings; the mature fruit is curved spindle rather than conical. The flowering and fruiting period is from May to October.

Produced in Yunnan (Lugu Lake). Born in a lake.

Lunanhai cauliflower (variety)

The difference between this variety and the original variety is that there are bulbils in the male spathe, which germinate rapidly and are the main way to reproduce. The male spathe is small, 2-3cm long, 1.5-2CM wide, wingless, arris free, verrucous and spinless; the staminodes in the male flowers are 3, very small, obcordate or ligulate, acute, 0.5-1mm in length and width. The flowering and fruiting period is throughout the year.

Produced in Yunnan (Lunan). Born in lakes.

Jingxi cauliflower (new draft)

Submerged herbs. Rhizome short, ca. 2 cm long, ca. 5 mm in diameter. Leaves basal, homomorphic; leaf blade oblong or banded elliptic, apex acuminate or obtuse, base tapered or shallowly cordate, entire, slightly undulate wrinkled, 24-50 cm long, 8-14 cm wide; veins 9, convex on abaxial surface of leaves, smooth; petiole 30-60 cm long, 5-8 mm wide, flat triangular, base sheathed, white, ca. 2.5 cm wide. Flowers unisexual, dioecious; spathe oblate, elliptic, smooth, 3-6cm long, 1.2-2.6cm wide, keel like in the middle, with 3 ribs on it, obvious ribs on both sides, 2 teeth at the apex; pedicel oblate cylindrical, 10-90cm long, 5mm wide, curved or twisted in spiral shape; male spathe contains 60-190 male flowers, or even more, pedicel triangular to round, 8-9cm long Sepals 3, broadly lanceolate, 1.8-2 cm long, 0.5-0.7 cm wide, involute outward, green; petals 3, obovate, apex concave, longitudinally striated, white, base yellow, 2.5 cm long, 3.5-4 cm wide; stamens 12, 2 whorls, inner whorl longer than outer whorl, filaments flat, yellowish, densely tomentose; staminodes 3 , linear, flat, green, 8-12 mm long, apex 2-lobed, lobes 1-3 mm long; pistillodes globose, pale yellow, 6-grooved; female spathe containing 8-9 female flowers, peduncle spirally twisted after anthesis; sepals and petals similar to male flowers, slightly smaller; 3 staminodes, ca. 5 mm long; ovary triangular, pale purple, 5.5-8 cm long, 0.3-0.7 cm wide, 1-locular, lateral Membranous placentation. Fruit triangular, verrucous, longer than spathe. Seeds numerous, long elliptic, with very sparse hairs. The flowering period is from June to October. 2n=22。

Produced in Guangxi (Jingxi). Born in the bend of a flowing river or in a stream.

O. acuminate (Gagnep.) Dandyvar.accuminata The main difference is that the number of male flowers in the male spathe is more than 140-190; the staminode apex in the male flower is 2-lobed; the pistillode has 6 grooves; the female spathe contains 8-9 female flowers.

Chinese PinYin : shuǐ xìng yáng huā