星叶蟹甲草Parasenecio komarovianus

星叶蟹甲草Parasenecio komarovianus

星叶蟹甲草Parasenecio komarovianus

星叶蟹甲草Parasenecio komarovianus

中文名(Chinese Name):星叶蟹甲草
学名(Scientific Name):Parasenecio komarovianus (Poljark.) Y. L. Chen
英文名(English Common Name):
别名(Chinese Common Name):星叶兔儿伞
异名(Synonym):Cacalia komaroviana (Pojark.) Pojark.  Cacalia hastata subsp. komaroviana (Pojark.) Kitag.  Cacalia hastata subsp. orientalis Kitag.  Hasteola komaroviana Pojark.  Cacalia kamtschatica Kudo  Cacalia farfaraefolia var. ramosa Maxim
科属(Family & Genus):菊科(Compositae)蟹甲草属
形态特征(Description):多年生草本,根状茎平卧,有多数较粗的须根。茎粗壮,直立,高(70)100-200厘米,下部直径8-12毫米,具纵条纹,无毛或被疏柔毛。下部叶在花期枯萎,中部叶叶片三角状戟形,稀扁三角状戟形,长20-30厘米,宽20-50厘米,顶端尾状急尖,基部截形或微心形,沿叶柄下延成宽翅,侧生裂片通常2裂,小裂片长披针形,顶端急尖,边缘微凹,具不规则的三角形或披针形的齿,薄质,离基3出脉,侧脉向上分叉,上面暗绿色,被疏短毛,下面淡绿色,沿脉被腺状短柔毛;叶柄短于叶片的2-3倍,具宽1.5-2厘米的翅,基部扩大而抱茎的大耳,上部叶渐小,具短叶柄,下部叶1-2,与中部茎叶同形,但较狭,三角状戟形,具2-3浅裂,或侧裂片边缘有较小的齿。头状花序极多数,多达250-350个,在茎端密集成长达20-50厘米的大型塔状圆锥花序,下部的花序枝长达22厘米,斜上,上部的分枝直立或开展;花序梗细,长4-12毫米;花序轴和花序梗常被密腺状短柔毛。总苞狭圆柱形,长9-12毫米,宽2-3毫米;总苞片5,线状披针形,长9-12毫米,顶端尖,绿色,边缘膜质,外面被疏腺状短毛或近无毛。小花5-7,花冠黄色,长7-8毫米,管部长1.5-2毫米,檐部钟状筒形,裂片披针形;花药伸出花冠,长约3毫米,基部箭形;花柱分枝长外弯,顶端截形,被乳头状微毛。瘦果狭圆柱形,长7-8毫米,无毛,具多条纵肋。冠毛白色,长约7毫米。花期7-8月,果期9月。
分布(Distribution):产吉林、辽宁,生于海拔850-2100米的林下或林缘,朝鲜、俄罗斯也有。
用途(Use):
引自中国植物志英文版FOC Vol. 20-21 Page 439, 444 
Parasenecio komarovianus (Pojarkova) Y. L. Chen, Fl. Reipubl. Popularis Sin. 77(1): 34. 1999.
星叶蟹甲草 xing ye xie jia cao | Asteraceae  | Parasenecio
Hasteola komaroviana Pojarkova, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 20: 381. 1960; Cacalia hastata Linnaeus subsp. komaroviana (Pojarkova) Kitagawa; C. komaroviana (Pojarkova) Pojarkova.
Rhizomes procumbent, with numerous stout fibrous roots. Stems robust, erect, (70-)100-200(-300) cm tall, 8-12 mm in diam. in lower part, striate, glabrous or laxly pubescent. Lower leaves withered by anthesis; petiole 1/3-1/2 as long as blade, with 1.5-2 cm wide wings, basally expanded into an amplexicaul auricle. Median leaf petiole decurrent into a broad wing; median leaves abaxially pale green, adaxially dark green, triangular-hastate, rarely broadly triangular-hastate, 20-30 × 20-50 cm, abaxially glandular puberulent on veins, adaxially sparsely puberulent, 3-veined from base, lateral veins upward divaricate, base truncate or subcordate, margin irregularly triangularly or lanceolate toothed, thin, apex caudate-acute; lateral lobes usually 2-lobed, lobules narrowly lanceolate, apex acute, slightly retuse. Upper leaves smaller, shortly petiolate. Lower leaves 1 or 2, similar to median stem leaves, but rather narrow, triangular-hastate, 2- or 3-fid or lateral lobes with smaller teeth on margins. Capitula quite numerous, 250-350, crowded at apices of stems in 20-50 cm large pyramidal panicles; lower synflorescence branches to 22 cm, ascending; upper branches erect or spreading; peduncles 4-12 mm, slender; rachis and peduncles often densely glandular puberulent. Involucres narrowly cylindric, 9-12 × 2-3 mm; phyllaries 4 or 5, green, linear-lanceolate, 9-12 mm, outside sparsely glandular puberulent or subglabrous, margin scarious, apically acute. Florets 5-7; corolla yellow, 7-8 mm, with 1.5-2 mm tube and campanulate-tubular limb; lobes lanceolate. Anthers ca. 3 mm, basally caudate. Style branches long excurved, apically truncate, papillose. Achenes cylindric, 7-8 mm, glabrous, ribbed. Pappus white, ca. 7 mm. Fl. Jul-Aug, fr. Sep.
Forest understories, forest margins; 800-2000 m. Jilin, Liaoning [Korea, Russia (Far East)].
(责任编辑:徐晔春)

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