峨眉点地梅查看源代码讨论查看历史
峨眉点地梅 |
中文名:峨眉点地梅 拉丁学名:Androsace paxiana R. Knuth 界:植物界 门:被子植物门 纲:双子叶植物纲 目:堇菜目 科:报春花科 属:点地梅属 |
峨眉点地梅(é méi diǎn dì méi),学名:Androsace paxiana R. Knuth,异名:Androsace henryi var. omeiensis ,是报春花科点地梅属植物,一年生或二年生草本,全株被细柔毛。 [1]
峨眉点地梅形态特征
多年生草本。根状茎短,单一或偶有分枝,具少数粗根及纤维状须根。叶丛生根茎端,叶片圆形,稀肾圆形,直径1.5-4厘米;
基部浅心形,边缘具波状圆齿,近革质,上面被贴伏的短硬毛,下面毛较长且密,老时脱落,两面均近于无毛,叶脉不明显;叶柄稍坚硬,圆柱状,与叶片等长或长于叶片1.5-3倍,被开展的疏柔毛。
花葶通常2-4枚自叶丛中抽出,直立,较叶柄纤细,除基部外,被向上的伏毛;伞形花序8-14花;苞片线形,长3-4毫米;花梗纤细,长6-15毫米,被小伏毛;
花萼狭钟状,长2.5-4毫米,分裂近达中部,裂片卵状三角形,先端稍钝,外面被伏毛,边缘具缘毛,果期变无毛,具明显的3-5纵脉;花冠白色,直径6-7.5毫米;
裂片倒卵状长圆形,先端微凹或浅心形。蒴果倒卵形,短于宿存花萼。花期4-5月;果期6月。
Herbs perennial. Leaves basal; petiole rigid, terete, 1--3 X as long as leaf blade, spreading pubescent; leaf blade orbicular, rarely reniform, 1.5--4 cm wide, subleathery, abaxially densely strigillose with longer hairs, glabrescent, adaxially minutely strigillose, base shallowly cordate, margin undulate-crenate; veins inconspicuous.
Scapes erect, usually 2--4 X as long as leaf blade, with upward appressed bristlelike hairs; umbels 8--14-flowered; bracts linear, 3--4 mm. Pedicel 0.6--1.5 cm, minutely strigillose. Calyx narrowly campanulate, 2.5--4 mm, sparsely appressed pubescent, parted to ca. 1/2; lobes ovate-triangular, ciliate, apex subobtuse; veins 3--5, distinct. Corolla white or tinged with red, 5--8 mm in diam.; lobes obovate-oblong, emarginate. Fl. Apr-May.
峨眉点地梅生长环境
峨眉点地梅生长于海拔1000-1400米山坡林缘。
峨眉点地梅分布范围
分类文献
Androsace paxiana R. Knuth in Engl. Pflanzenr. 22 (IV-237): 176. 1905; Hand. -Mazz. in Not. Roy. Bot. Gard. Edinb. 15: 270. 1927. ——Androsace henryi var. omeiensis R. Knuth l. c. 176. 1905.