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小山菊Chrysanthemum oreastrum

时间:2013-07-23 14:14来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):小山菊 学名( Scientific Name ): Chrysanthemum oreastrum Hance 英文名( English Common Name ): 别名( Chinese Common Name ): 毛山菊 异名( Synonym ): Dendranthema oreastrum (Hance) Ling Chrysanthemum zawad







中文名(Chinese Name):小山菊
学名(Scientific Name): Chrysanthemum oreastrum Hance
英文名(English Common Name):
别名(Chinese Common Name):毛山菊
异名(Synonym):Dendranthema oreastrum (Hance) Ling  Chrysanthemum zawadskii var. alpinum (Nakai) Kitam.  Chrysanthemum sibiricum var. alpinum Nakai  Dendranthema sichotense Tzvelev  Chrysanthemum arcticum L.  Chrysanthemum zawadskii subsp. acutilobum var. alpinum (Nakai) Kitay
科属(Family & Genus):菊科(Compositae)茼蒿属
形态特征(Description):多年生草本,高3-45厘米,有地下匍匐根状茎。茎直立,单生,不分枝,极少有1-2个短分枝的,被稠密的长或短柔毛,但下部毛变稀疏至无毛。基生及中部茎叶菱形、扇形或近肾形,长0.5-2.5厘米,宽0.5-3厘米,二回掌状或掌式羽状分裂,一二回全部全裂。上部叶与茎中部叶同形,但较小,最上部及接花序下部的叶羽裂或3裂。末回裂片线形或宽线形,宽0.5-2毫米。全部叶有柄。叶下面被稠密或较多的膨松的长柔毛至稀毛而几无毛。头状花序直径2-4厘米,单生茎顶,极少茎生2-3个头状花序的。总苞浅碟状,直径1.5-3.5厘米。总苞片4层。外层线形、长椭圆形或卵形,长5-9毫米,中内层长卵形、倒披针形,长6-8毫米,中外层外面被稀疏的长柔毛。全部苞片边缘棕褐色或黑褐色宽膜质。舌状花白色、粉红色。舌片顶端3齿或微凹。瘦果长约2毫米。花果期6-8月。
分布(Distribution):产河北、山西及吉林,生于海拔1800-3000米的草甸上。俄罗斯也有。
用途(Use):
引自中国植物志英文版FOC Vol. 20-21 Page 669, 672
Chrysanthemum oreastrum Hance, J. Bot. 16: 108. 1878.
小山菊 xiao shan ju | Asteraceae  | Chrysanthemum
Chrysanthemum sibiricum (Candolle) Fischer ex Komarov var. alpinum Nakai; C. zawadskii Herbich var. alpinum (Nakai) Kitamura; Dendranthema oreastrum (Hance) Y. Ling; D. sichotense Tzvelev.
Herbs, perennial, 3-45 cm tall, with procumbent rhizomes. Stems erect, solitary, unbranched or rarely shortly 1- or 2-branched, densely villous or pubescent, lower parts glabrescent to glabrous. Basal and lower stem leaves: petiole 1-5 cm; leaf blade rhomboid, flabelliform, ovate, or broadly ovate, 0.5-2.5 × 0.5-3 cm, abaxially densely villous, biternate-pinnatisect; ultimate segments linear or broadly linear. Upper stem leaves similar but smaller; uppermost linear, entire. Capitula solitary, rarely 2 or 3, 2-4 cm in diam. Involucres cup-shaped; phyllaries in 4 rows, scarious margin deep or dark brown, outer ones linear, narrowly elliptic, or ovate, 5-9 mm, abaxially sparsely villous, middle and inner ones long ovate or oblanceolate, 6-8 mm, middle ones sparsely villous abaxially, inner ones glabrous abaxially. Ray floret lamina white or pink, apex 3-denticulate. Achenes ca. 2 mm. Fl. and fr. Jun-Aug. 2n = 54*.
Meadows; 1800-3000 m. Hebei, Jilin, Yunnan [Korea, Russia (Far East)].
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