天池碎米荠Cardamine changbaiana

中文名(Chinese Name):天池碎米荠
学名(Scientific Name):Cardamine changbaiana Al-Shehbaz
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Cardamine resedifolia var. morii Nakai
科属(Family & Genus):十字花科Cruciferae碎米荠属Cardamine
形态特征(Description):多年生矮小草本,高5-8厘米,无毛。根状茎横走、倾斜或直立,细长,其上生有须根。地上茎数次至多次二歧式分枝,且短宿密集呈丛生状。基生叶密集成莲座状,叶柄长15-25毫米,基部稍扩大;单叶,长圆状卵形至微心形,长4-8毫米,宽3-8毫米,顶端圆钝,有小短尖头,基部两侧边缘各有1明显的耳状圆齿或裂片,有时全缘或大头羽裂而具1-2对小形侧裂片;茎生叶也有长柄,很少茎生叶有小叶1对,顶生小叶与基生叶相似,侧生小叶较顶生的小,卵形,长2-4毫米,无小叶柄或有短叶柄。总状花序顶生,有花2-5(9)朵,花梗短;萼片长圆形,长约2毫米;花瓣白色,倒卵形,长约3.5毫米,基部渐狭成爪。长角果扁平,长15-20毫米,宽1-1.3毫米,花柱极短,柱头扁压;果梗直立,长1-4.5毫米。种子尚未完全成熟,椭圆形,褐色。花、果期7-9月。
分布(Distribution):产吉林。生于高山石缝间或山坡干砂地上,海拔1700-2500米。朝鲜也有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 8 Page 103     
Cardamine changbaiana Al-Shehbaz, Novon. 10: 323. 2000.
天池碎米荠 tian chi sui mi ji | Brassicaceae  | Cardamine
Cardamine resedifolia Linnaeus var. morii Nakai.
Herbs perennial, 2-8 cm tall, scapose, glabrous throughout. Rhizomes slender, 0.4-0.7 mm in diam. Stems erect, leafless or rarely 1-leaved. Basal leaves rosulate, fleshy; petiole 0.3-3.5 cm; leaf blade simple or rarely 3-lobed, broadly ovate, subcordate, or oblong, 2-10 × 1.5-8 mm, base cordate or obtuse, margin entire or repand, apex rounded or obtuse. Cauline leaves absent, rarely 1 and petiolate, similar but narrower than basal leaves, petiole base not auriculate. Racemes terminal, 2-5(-7)-flowered, ebracteate. Fruiting pedicels erect to erect-ascending, 2-7 mm, straight. Sepals oblong, 1.3-1.7 × 0.6-0.8 mm. Petals white, obovate, 3-3.5 × 1.5-1.8 mm, base tapering into a claw 0.4-1 mm, apex rounded or subemarginate. Filaments 1.4-2 mm; anthers oblong, 0.5-0.8 mm. Ovules 8-12 per ovary. Fruit linear, 1-2 cm × 1.3-2 mm; gynophore 0.3-1 mm; valves smooth, glabrous; style 0.5-2 mm. Seeds brown, oblong to ovate-oblong, 1.2-1.5 × 0.8-1.1 mm, wingless and not margined. Fl. and fr. Jul-Aug.
Rocky slopes; 2400-2500 m. S Jilin (Changbai Shan) [Korea].
 天池碎米荠Cardamine changbaiana
(责任编辑:徐晔春)

顶一下[0]

踩一下[1]