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Dinghushan | Family List | Lythraceae | Ammannia

Ammannia auriculata Willd.

耳基水苋

Description from Flora of China

Ammannia arenaria Kunth; A. auriculata Willdenow var. arenaria (Kunth) Koehne.

Herbs, 15-60 cm tall. Stems branched. Leaves opposite, narrowly lanceolate or oblong-lanceolate, l.5-7.5 cm × 3-15 mm, base cordate-auriculate, clasping. Flowers (1-)3-15, commonly ca. 7, in axillary cymes; pedicels 1-3(-6) mm; peduncle 3-9 mm, commonly ca. 5 mm; bracteoles linear, not reaching floral tube. Floral tube campanulate to urceolate, 1.5-2 mm, conspicuously 4-8-ribbed; sepals 4, broadly deltate; epicalyx segments minute, thickened. Petals 4, rose-purple, suborbicular, ca. 1.5 mm, sometimes absent. Stamens 4-8, long-exserted. Style ca. as long as or longer than ovary. Capsules 1.5-3(-3.5) mm in diam., equal to surpassing floral tube. Fl. Aug-Dec, fr. Aug-Dec. 2n = 30, 32.

Wet places, rice farms. Anhui, Fujian, Gansu, Guangdong, Hebei, Henan, Hubei, Jiangsu, Shanxi, Yunnan, Zhejiang [pantropical].

生活型: 草本

栽培植物: 野生

特征: 直立草本;

花期: 3

生境: 生于罗隐河边

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


 

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