云南兔耳草Lagotis yunnanensis

中文名(Chinese Name):云南兔耳草
学名(Scientific Name):Lagotis yunnanensis W. W. Smith
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):玄参科(Scrophulariaceae)兔耳草属
形态特征(Description):多年生草本,高约15-35厘米。根状茎伸长,粗壮,长达6厘米;根多数,条形,带肉质,长可达15厘米,直径约1-2毫米。茎单条或2条,直立,较叶长。基生叶4-6片,叶柄长6-10厘米,有翅,基部稍扩大;叶片卵形至矩圆形,纸质,长3.5-7厘米,可达12厘米,顶端圆形或有短锐尖头,基部楔形下延成柄,边缘有宽圆齿,少全缘;茎生叶生于花序附近,2-6片,无柄,与基生叶相似而较小。穗状花序长4-10厘米,直径约2厘米;苞片卵形至卵状披针形,顶端微尖,暗黄绿色,边缘色淡,膜质;花萼在花期时稍超过苞片,佛焰苞状,淡黄绿色,主脉两条稍伸出,边缘常为细流苏状;花冠白色,少紫色,长约8-12毫米,花冠筒伸直,与唇部相等或稍长,上唇矩圆形,全缘,少2裂,下唇2-3(4)裂,裂片披针形;雄蕊2,花丝极短,花药有近于箭形的锐尖头;花柱短,不伸出于花冠筒外;花盘大,斜杯状。花期6-8月。
分布(Distribution):分布于云南、西藏、四川等地,生于海拔3350-4700米的高山草地。
用途(Use):
引自中国植物志英文版:FOC Vol. 18 Page 83
Lagotis yunnanensis W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 11: 219. 1919.
云南兔耳草 yun nan tu er cao     | Scrophulariaceae  | Lagotis
Herbs, 15-35 cm tall. Lateral roots numerous, to 15 cm, 1-2 mm in diam. Rhizomes to 6 cm. Stems 1 or 2, erect, longer than leaves. Basal leaves 4-6; petiole 6-10 cm; leaf blade ovate to oblong, 3.5-7(-12) cm, papery, base cuneate and tapering, margin broadly crenate or rarely entire, apex rounded and apiculate. Stem leaves 2-6, sessile, smaller than basal leaves. Spikes 4-10 cm, ca. 2 cm in diam.; bracts dark yellow-green, ovate to ovate-lanceolate, apex sharp. Calyx pale yellow-green, at anthesis slightly longer than bracts, margin thin fimbriate. Corolla white, rarely purple, 0.8-1.2 cm; tube straight, as long as or slightly longer than limb; lower lip lobes 2-4, lanceolate; upper lip unlobed, rarely 2-lobed, lobes oblong. Anthers subsagittate. Style included. Fl. Jun-Aug.
* Alpine grassland; 3300-4700 m. NW Sichuan, Xizang, NW Yunnan.
 
云南兔耳草Lagotis yunnanensis

云南兔耳草Lagotis yunnanensis

云南兔耳草Lagotis yunnanensis(责任编辑:徐晔春)

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