thumb|Rudbeckia sp. Rudbeckia () is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.
GENUS
模式種 Rudbeckia hirtaL.[1][2] 金光菊属(学名:Rudbeckia)是菊科下的一个属,为一年生或多年生草本植物。该属共有约30种,分布于北美。[4] 参考文献 ^ lectotype designated by N. L. Britton et A. Brown, Ill. Fl. N.U.S. ed. 2. 3: 469 (1913) ^ Tropicos, Rudbeckia L. ^ Flann, C (ed) 2009+ Global Compositae Checklist ^ 中国种子植物科属词典. 中国数字植物标本馆. (原始内容存档于2012-04-11). 外部链接 維基物種中有關金光菊属的數據 这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 查 论 编 取自“https://zh.wikipedia.org/w/index.php?title=金光菊属&oldid=51511298” 分类: 菊科 金光菊属 隐藏分类: 本地相关图片与维基数据不同 WikispeciesLatinName 全部小作品 植物小作品
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thumb|Rudbeckia sp. Rudbeckia () is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.
The species are herbaceous, mostly perennial plants (some annual or biennial) growing to 0.5–3.0 m tall, with simple or branched stems. The leaves are spirally arranged, entire to deeply lobed, and 5–25 cm long. The flowers are produced in daisy-like inflorescences, with yellow or orange florets arranged in a prominent, cone-shaped head; "cone-shaped" because the ray florets tend to point out and down (are decumbent) as the flower head opens.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).