《中国植物志》|| 十字花科 CRUCIFERAE ||独行菜族 Trib. Lepidieae DC. ||蛇头荠属 Dipoma Franch.
24. 蛇头荠属*——Dipoma Franch.
Franch. in Bull. Soc. Bot. France 33: 404. 1886 et Pl. Delav. 63. t.
17A. 1889; O. E. Schulz in Engl. et Prantl, Nat. Pflanzenfam. 2.
Aufl. 17b: 459. 1936.
多年生草本;根茎细,匍匐有分枝;茎多数,具单毛。基生叶莲座状,匙状卵形,全缘或上部有数个粗锯齿,无毛但有缘毛。具叶柄。总状花序花疏生,果期延长;花大;花梗短,有糙硬毛;萼片直立,卵形,具膜质边缘,基部不成囊状;花瓣白色,具紫色细纹,圆形,顶端凹缺;侧蜜腺半圆形,无中蜜腺;子房具4-6垂生胚珠,柱头头状,凹陷,不显明2裂,花柱短。短角果短卵形,压扁,开裂,果瓣膜质,凸出,有龙骨突起及细脉,隔膜宽。种子大,卵形,压扁,无边缘;子叶缘倚胚根。
2种、1变种、1变型,产我国西南部高山及甘肃。
本属模式种:蛇头荠 Dipoma iberideum Franch.
Source 中国植物物种信息数据库
《云南植物志》|| 十字花科 Cruciferae nom. conserv. ||十字花科 Cruciferae nom. conserv. ||蛇头荠属 Dipoma Franch.
11.蛇头荠属 Dipoma Franch.
多年生草本;根茎匍匐。茎矮小,外倾,不分枝或上部分枝。基生叶莲座状,茎生叶均匀排列,卵形、长圆状倒卵形至倒卵形或倒披针形,全缘或上部边缘每侧有1齿,无毛或有单毛及分叉毛,具短柄。总状花序顶生,多花,无苞片;花白色;萼片直立,卵形;花瓣宽倒卵形,先端凹陷,基部具短爪;花柱短,柱头稍2裂。短角果宽菱形,侧扁,开裂,果瓣具龙骨状突起及细脉;果梗外折且扭转;种子1枚,大,卵形,扁压,无边缘;子叶缘倚胚根。
2种1变种及1变型,产我国甘肃、四川、西藏、云南高山地区;云南有1种。
Source 中国植物物种信息数据库
《Flora of China》|| Brassicaceae || ||蛇头荠属 Dipoma
23. Dipoma Franchet, Bull. Soc. Bot. France. 33: 404. 1886.
蛇头荠属 she tou ji shu
Herbs perennial, rhizomatous. Trichomes a mixture of simple and short-stalked, submalpighiaceous. Stems decumbent or ascending. Basal leaves rosulate, simple, entire or distally 3-5-lobed. Cauline leaves sessile and attenuate at base, entire, apically dentate. Racemes several flowered, bracteate. Fruiting pedicels ascending or divaricate at base, strongly recurved and often forming a loop. Sepals oblong, spreading, glabrous or pubescent, base of lateral pair not saccate. Petals white, sometimes with pink veins, much longer than sepals; blade broadly obcordate to orbicular, apex emarginate or rarely subrounded; claw short, well differentiated from blade. Stamens 6, erect, subequal; filaments not dilated at base; anthers ovate to suboblong, obtuse at apex. Median glands absent; lateral glands 1 on each side of lateral stamen. Ovules 4 per ovary. Fruit dehiscent silicles, oblong or ovoid, terete or slightly angustiseptate, sessile; valves membranous, sparsely to densely hirsute with subsetose trichomes, rarely glabrous, rounded, smooth, wingless or with small appendages; replum strongly flattened and to 1 mm wide; septum complete; style conical; stigma capitate, entire. Seeds wingless, oblong, flattened; seed coat minutely reticulate, not mucilaginous when wetted; cotyledons accumbent.
* One species.
Source eFloras.org