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Dinghushan | Family List | Malvaceae | Gossypium

Gossypium hirsutum L.

陆地棉

Description from Flora of China

Gossypium hirsutum f. mexicanum (Todaro) Roberty; G. mexicanum Todaro; G. religiosum Linnaeus.

Herbs, annual, 0.6-1.5 m tall. Branchlets sparsely villous. Stipules ovate-falcate, 5-8 mm, caducous; petiole 3-14 cm, pilose; leaf blade broadly ovate, 3(-5)-lobed, 5-12 cm in diam., lobes broadly triangular to ovate-orbicular, base broad, central lobe usually 1/2 as long as leaf blade, abaxially sparsely villous, adaxially nearly glabrous, scabrously hairy on veins, base cordate or cordate-truncate, apex acuminate. Flowers solitary, axillary. Pedicel usually slightly shorter than petiole. Epicalyx lobes 3, free, to 4 × 2.5 cm (including teeth), hirsute and ciliate with long hairs, base cordate, with 1 gland, 7-9-toothed near apex, teeth 3 or 4 × as long as wide. Calyx cup-shaped, 5-lobed, lobes triangular, ciliate. Corolla white or yellowish, fading to reddish or purple, funnelform; petals 4-5.5 × 3.5-4.5 cm. Staminal column 1-2 cm; filaments lax, upper ones longer. Capsule 3- or 4-celled, ovoid, 3.5-5 cm, apex beaked. Seeds free, ovoid, with white wool and gray-white moderately persistent short fuzz. Fl. summer-autumn.

Gossypium hirsutum has replaced G. arboreum and G. herbaceum in the cotton-producing areas of China.

Widely cultivated in China [probably of American origin (?Mexico), now cultivated throughout warmer parts of the world].

生活型: 灌木

栽培植物: 栽培

特征: 灌木;

花期: 5

生境: 平地、村旁、栽培(又作高级纸,塑料等原料;茎皮可制绳;叶可提制柠檬酸)

用途: 棉毛纤维为优良纺织原料,根通经止咳,治月经不调,气管炎;种子可催乳;种子油精炼后可供食用及制人造奶油,作药剂调制材料及工业用;油麸可制洗涤粉,肥皂,又可提制甘油,脂肪酸,供制人造革,防雨布等用;棉子粉可用饲料;棉子壳可提供丙酮,甲醇,活性炭等原料;棉子壳的短绒毛可纺低级纱

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 双子叶植物纲

中文别名: 高地棉


 

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