耳基水苋Ammannia arenaria H. B. K.
耳基水苋Ammannia arenaria H. B. K.
2.耳基水苋(广州植物志)图版18:5-7
Ammannia arenaria H. B. K., Nov. Gen. 6: 150. 1823 et in Komarov. Fl. URSS 15: 529. 1949;中国高等植物图鉴2: 976.图3682. 197 2.——A. auriculata Willd., Hort. Berol. 1: 7. t. 7. 1806. P. p. ; ——A. auriculata Willd. var. are. naria Koehne in Engl., Bot. Jahrb. 1: 245. 1880 et in Pflanzenr. 17 (IV-216): 46. f. 5b. 1903.——A. senegalensis DC., Prodr. 3: 77. 1828; Clarke. in Hook. f., Fl. Brit. Ind. 2: 570. 1879.
草本,直立,少分枝,无毛,高15-60厘米,上部的茎4棱或略具狭翅。叶对生,膜质,狭披针形或矩圆状披针形,长1.5-7.5厘米,宽3-15毫米,顶端渐尖或稍急尖,基部扩大,多少呈心状耳形,半抱茎;无柄。聚伞花序腋生,通常有花3朵,多可至15朵;总花梗长约5毫米,花梗极短,长约1-2毫米;小苞片,2枚,线形;萼筒钟形,长1.5-2毫米,最初基部狭,结实时近半球形,有略明显的棱4-8条,裂片4,阔三角形;花瓣4,紫色或白色,近圆形,早落,有时无花瓣,雄蕊4-8约一半突出萼裂片之上;子房球形,长约1毫米,花柱与子房等长或更长。蒴果扁球形,成熟时约1/3突出于萼之外,紫红色,直径2-3.5毫米,成不规则周裂;种子半椭圆形。花期8-12月。
产广东、福建、浙江、江苏、安徽、湖北、河南、河北、陕西、甘肃及云南等地;常生于湿地和水稻田中,比水苋菜较少见。广布于世界热带各地。
《Flora of China》 Vol. 13 (2007)
Ammannia auriculata Willdenow
耳基水苋 er ji shui xian
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].
别名:金桃仔;大仙桃草;耳茎水苋;耳水苋;耳叶苋菜;水旱莲;眼眼红;耳叶水苋菜;eared redstem;
科名:千屈菜科 Lythraceae
属名:水苋菜属 Ammannia
2.耳基水苋(广州植物志)图版18:5-7
Ammannia arenaria H. B. K., Nov. Gen. 6: 150. 1823 et in Komarov. Fl. URSS 15: 529. 1949;中国高等植物图鉴2: 976.图3682. 197 2.——A. auriculata Willd., Hort. Berol. 1: 7. t. 7. 1806. P. p. ; ——A. auriculata Willd. var. are. naria Koehne in Engl., Bot. Jahrb. 1: 245. 1880 et in Pflanzenr. 17 (IV-216): 46. f. 5b. 1903.——A. senegalensis DC., Prodr. 3: 77. 1828; Clarke. in Hook. f., Fl. Brit. Ind. 2: 570. 1879.
草本,直立,少分枝,无毛,高15-60厘米,上部的茎4棱或略具狭翅。叶对生,膜质,狭披针形或矩圆状披针形,长1.5-7.5厘米,宽3-15毫米,顶端渐尖或稍急尖,基部扩大,多少呈心状耳形,半抱茎;无柄。聚伞花序腋生,通常有花3朵,多可至15朵;总花梗长约5毫米,花梗极短,长约1-2毫米;小苞片,2枚,线形;萼筒钟形,长1.5-2毫米,最初基部狭,结实时近半球形,有略明显的棱4-8条,裂片4,阔三角形;花瓣4,紫色或白色,近圆形,早落,有时无花瓣,雄蕊4-8约一半突出萼裂片之上;子房球形,长约1毫米,花柱与子房等长或更长。蒴果扁球形,成熟时约1/3突出于萼之外,紫红色,直径2-3.5毫米,成不规则周裂;种子半椭圆形。花期8-12月。
产广东、福建、浙江、江苏、安徽、湖北、河南、河北、陕西、甘肃及云南等地;常生于湿地和水稻田中,比水苋菜较少见。广布于世界热带各地。
《Flora of China》 Vol. 13 (2007)
Ammannia auriculata Willdenow
耳基水苋 er ji shui xian
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].
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