罗星草Canscora andrographioides

中文名(Chinese Name):罗星草
学名(Scientific Name):Canscora andrographioides Griff. ex C. B. Clarke
英文名(English Common Name):
别名(Chinese Common Name):糠果草
异名(Synonym):Canscora melastomacea Hand.-Mazz.  Canscora trinervia Ridl.
科属(Family & Genus):龙胆科(Gentianaceae)穿心草属
形态特征(Description):一年生草本,高20-40厘米,全株光滑无毛。茎直立,绿色,几四棱形,多分枝。叶无柄,卵状披针形,长1-5厘米,宽0.5-2.5厘米,愈向茎上部叶愈小,先端急尖,基部圆形或楔形,叶脉细,3-5条,在下面突起。复聚伞花序呈假二叉分枝或聚伞花序顶生和腋生;花斗数;花萼筒形,浅裂,萼筒膜质,长9-11毫米,裂片直立,狭三角形,长3-4毫米,先端急尖,脉3条,在背面突起,并在先端汇合,基部向萼筒下延成突起的8条脉纹,弯缺楔形;花冠白色,长1.4-1.6厘米,冠筒筒状,裂片平展,十字形,稍不整齐,椭圆形或矩圆状匙形,长4.5-5毫米,先端钝圆,全缘;雄蕊着生于冠筒上部,不整齐,1枚发育,花丝丝状,长2-2.5毫米,花药椭圆形,长1-1.2毫米,3枚不发育,花丝短,长0.4-0.5毫米,花药小,不发育;子房无柄,圆柱形,长5-6.5毫米,花柱极长,丝状,长8.5-10毫米,柱头2裂,裂片矩圆形。蒴果内藏,无柄,膜质,矩圆形,长7-8毫米;种子小,扁压,黄褐色,近圆形,直径0.5-0.6毫米。花果期9-10月。
分布(Distribution):产云南、广西、广东。生于海拔200-1400米山谷、田地中、林下。
用途(Use):
引自中国植物志英文版FOC Vol. 16 Page 5
Canscora andrographioides Griffith ex C. B. Clarke, J. Linn. Soc., Bot. 14: 431. 1875.
罗星草 luo xin cao | Gentianaceae  | Canscora
Canscora melastomacea Handel-Mazzetti.
Annuals, 20-40 cm tall, glabrous. Stems erect, much branched, obscurely 4angled. Leaves sessile, ovate-lanceolate to ovate, 1-5 × 0.5-2.5 cm, base cuneate to rounded, apex acute; veins 3-5, slender. Cymes pseudodichotomous. Flowers 4merous. Calyx tubular; tube 0.9-1.1 cm, membranous; lobes narrowly triangular, 3-4 mm, apex acute, veins 3 and prominent. Corolla white to purple, tubular, 1.4-1.8 cm; lobes elliptic to oblong-spatulate, 4.5-5 mm, margin entire, apex obtuse. Fertile stamens 1; filaments filiform, 2-2.5 mm; anthers ellipsoid, 1-1.2 mm. Sterile stamens 3; filaments 0.4-0.5 mm; anthers small. Style filiform, 8.5-10 mm; stigma lobes oblong. Capsules ellipsoid, 7-8 mm. Seeds 0.5-0.6 mm. Fl. and fr. Sep-Oct.
Weed in cultivated land, valleys, forests; 200-1400 m. Guangdong, Guangxi, S and SW Yunnan [Cambodia, India (Assam), Laos, Malaysia, Thailand, Vietnam].
罗星草Canscora andrographioides

罗星草Canscora andrographioides

罗星草Canscora andrographioides
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