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金光菊Rudbeckia laciniata

时间:2013-07-23 13:25来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):金光菊 学名( Scientific Name ): Rudbeckia laciniata Linn. 英文名( English Common Name ): 别名( Chinese Common Name ): 黑眼菊 异名( Synonym ): 科属( Family Genus ): 菊科(Compositae)金光菊属 形态特




中文名(Chinese Name):金光菊
学名(Scientific Name):Rudbeckia laciniata Linn.
英文名(English Common Name):
别名(Chinese Common Name):黑眼菊
异名(Synonym):
科属(Family & Genus):菊科(Compositae)金光菊属
形态特征(Description):多年生草本,株高约50~200厘米。茎部叶片掌状裂,上部叶片阔披针形至矩圆形,有时亦分裂。头状花序单生或少数合生,黄色。瘦果。花期6~9月,果期秋季。
分布(Distribution):产北美,我国庭院栽培广泛。
用途(Use):
引自中国植物志英文版FOC Vol. 20-21 Page 873
Rudbeckia laciniata Linnaeus, Sp. Pl. 2: 906. 1753.
金光菊 jin guang ju| Asteraceae  | Rudbeckia
Perennials, 50-200 cm tall. Leaves green; blade broadly ovate to lanceolate, all but distalmost ones 1- or 2-pinnatifid or pinnately compound; leaflets or lobes 3-11, glabrous or hairy, base cuneate to attenuate or cordate, margin entire or dentate, apex acute to acuminate; basal leaves petiolate, 15-50 × 10-25 cm; cauline leaves petiolate or sessile, mostly lobed to pinnatifid, sometimes not lobed, 8-40 × 3-20 cm. Capitula 2-25 in loose, corymbiform arrays; phyllaries 8-15, ovate to lanceolate, glabrous or hairy, margin mostly ciliate; receptacle hemispheric or ovoid to globose; paleae 3-7 mm, abaxially densely hairy at apex, apex truncate or rounded. Ray florets 8-12; corolla limb elliptic to oblanceolate, 15-50 × 4-14 mm, abaxially hairy. Disk 0.9-3 × 1-2.3 cm; disk florets numerous; corolla yellow to yellowish green, 3.5-5 mm; style branches 1-1.5 mm, apex acute to rounded. Achenes 3-4.5 mm; pappus coroniform or of 4 scales, to 1.5 mm. Fl. Jul-Sep.
Widely cultivated and naturalized in China [native to North America].
 
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