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Dinghushan | Family List | Papilionaceae | Arachis

Arachis hypogaea L.

落花生

Description from Flora of China

Lathyrus esquirolii H. Léveillé.

Herbs, annual, erect to decumbent. Stems erect or procum­bent, (6-)30-80 cm tall, yellowish pubescent, glabrescent. Stipules 2-4 cm, pilose. Leaves usually 4-foliolate; petiole 3.7-10 cm, covered with long flexuous trichomes, basally adnate to stipule; petiolules 1-10 mm, velutinous; leaflet blades ovate-oblong to obovate, 1.1-5.9 × 0.5-3.4 cm, papery, both surfaces with long trichomes, veins ca. 10 on each side of midvein, base almost rounded, margin ciliate, apex obtuse or emarginate and mucronate. Bracts lanceolate, apex acuminate. Flowers 8-10 mm, sessile; bracteoles lanceolate, ca. 5 mm, velutinous. Calyx tube 4-6 mm, thin. Corolla yellow to golden yellow; standard spreading, apex emarginate; wings distinct, oblong to obliquely ovate, slender; keels distinct, long ovate, shorter than wings, inflexed, apex acuminate to beaked. Ovary oblong; style longer than calyx; stigma terminal, small, sparsely pubescent. Legume geocarpic, oblong, inflated, 2-5 × 1-1.3 cm, thick-walled, retic­ulate veined, with 1-4(-6) seeds. Seeds light brown, oblong, 5-10 mm in diam. Fl. May-Aug, fr. Jul-Sep. 4n = 40.

Peanuts are grown over much of China except for Heilongjiang, Qinghai-Xizang Plateau, and Xinjiang. In addition to being used for food, they are used as a source of oil, soap, cosmetics, green fertilizer, fodder, and paper.

Grown in sandy warm areas. Cultivated in Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, and Zhejiang [native to tropical South America].

生活型: 草本

栽培植物: 栽培

特征: 草本;

花期: 6,10

生境: 栽培

用途: 油料作物、油麸为肥料、茎、叶作绿肥

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: 花生、地豆


 

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