矮生野决明Thermopsis smithiana

中文名(Chinese Name):矮生野决明
学名(Scientific Name):Thermopsis smithiana Pet.-Stib.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Thermopsis alpina var. humilis Czefr.
科属(Family & Genus):蝶形花科,Fabaceae,野决明属
形态特征(Description):多年生草本,高7-12 (-15) 厘米。根状茎匍匐状或上升。茎直立,基部具关节,有2-4分枝,具四棱,被白色长柔毛,上部叶密集,基部具栗褐色膜质鞘,抱茎合生成筒状,上缘裂成3齿。三出掌状复叶;无柄或具短柄;托叶叶状,长10-16毫米,宽5-7毫米;小叶狭椭圆形或倒卵形,长1.5-2厘米,宽5-7毫米,先端钝圆或截形,偶有细尖,基部狭楔形,上面近无毛,下面被白色长柔毛。总状花序顶生,短缩,长3-5厘米;花3朵轮生,长约2厘米;花梗短;苞片阔卵形,急尖头,上面近无毛,下面与花萼被同样白色长柔毛;萼近二唇形,长约1.5厘米,背面基部稍呈囊状隆起,上方2齿阔三角形,长约5毫米,下方3齿狭披针形,长约10毫米;花冠鲜黄色,旗瓣近圆形,长约2厘米,先端凹陷,基部渐狭至长瓣柄,瓣柄长7毫米,翼瓣和龙骨瓣等宽,长与旗瓣相等或稍短;子房近无毛,密被柔毛,胚珠4-5粒。荚果椭圆形、长圆形或倒卵形,长3-6厘米,宽1.5-2.5厘米,先端圆钝或截形,具短尖头,基部渐狭,无果颈,膜质,干后黄褐色,被白色伸展长柔毛;有种子1-4粒。种子椭圆形,暗红色,长6-7毫米,宽约5毫米。花期6-7月,果期7-8月。
分布(Distribution):产四川西部、云南西北部及西藏。生于海拔3500-4500米的山坡。
用途(Use):
引自植物志英文版:FOC Vol. 10 Page 101, 102, 104
Thermopsis smithiana E. Peter, Acta Horti Gothob. 13: 412. 1940.
矮生野决明 ai sheng ye jue ming | Fabaceae  | Thermopsis
Thermopsis alpina (Pallas) Ledebour var. humilis Czefran­ova.
Perennial herbs, 7-12(-15) cm tall. Stems erect, 2-4-branched, quadrangular, white villous, base articulate; leaves at base 3 verticillate and connate into a tawny membranous sheath. Stipules 10-16 mm; leaflets obovate to narrowly elliptic, 1.5-2 × 0.5-0.7 cm, white villous abaxially, glabrous adaxially, base tapering, apex obtuse, rarely mucronate. Racemes short, 3-5 cm; flowers 3 verticillate; bracts broadly ovate, acute. Calyx ca. 1.5 cm, slightly gibbous. Corolla bright yellow, ca. 2 cm, petals long clawed. Ovary subsessile, 3-5-ovuled, densely hairy. Legume elliptic, oblong, or obovate, 3-6 × 1.5-2.5 cm, base tapering, apex obtuse, shortly beaked; valves membranous, tawny when dry, white villous. Seeds 1-4, dark scarlet, ellip­soid, 6-7 × ca. 5 mm. Fl. Jun-Jul, fr. Jul-Aug.
  • Mountain slopes; 3500-4500 m. W Sichuan, Xizang, NW Yun­nan.
矮生野决明Thermopsis smithiana

矮生野决明Thermopsis smithiana(责任编辑:徐晔春)

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