Paraprenanthes

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Paraprenanthes

Common names

Chinese (China): 假福王草属 jia fu wang cao shuA

Description

Herbs, perennial or more rarely annual. Stem usually solitary, erect, branched apically, glabrous or glandular hairy, leafy or rarely ± leafless. Leaves pinnately lobed or more rarely undivided. Synflorescence with capillaceous branches. Capitula often pendent at anthesis, with 4–15 florets; peduncle capillaceous. Involucre narrowly cylindric. Phyllaries usually green and tinged pale purplish red, glabrous; outer phyllaries few, gradually longer centripetally, mostly much shorter than inner phyllaries; inner phyllaries usually 5 or 8, ± equal in length, ± linear-lanceolate to linear. Receptacle naked. Florets pale reddish or purple. Achene body dark to blackish brown, fusiform, weakly compressed, with 5 main ribs (2 lateral, 1 median ventrally, and 2 median dorsally) and 2 rather similar secondary ribs in between, apically attenuate and pale but without or rarely with a short beak. Pappus white, single, of slender scabrid bristles.

Chromosome numbers

Diploids, x = 9.B

Distribution

Asia-Temperate: China North-Central (Shaanxinative); China South-Central (Chongqingnative, Guizhounative, Hubeinative, Sichuannative, Yunnannative); China Southeast (Anhuinative, Fujiannative, Guangdongnative, Guangxinative, Hunannative, Jiangsunative, Jiangxinative, Zhejiangnative); Hainannative: presence questionable; Japan (Honshunative, Kyushunative, Shikokunative); Taiwannative; Tibetnative: presence questionable Asia-Tropical: Myanmarnative; Thailandnative; Vietnamnative

Bibliography

A. Wu & al., Flora of China 20-21. 2011
B. Watanabe K., Index to chromosome numbers in Asteraceae.