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Flora of Taiwan | Family List | Compositae

Parasenecio W. W. Sm. & J. Small

蟹甲草屬

PENG, Ching-I & CHUNG, Shih-Wen

Parasenecio nokoensis

Credit: HAST

Perennial herbs. Leaves alternate, cauline, several or few with long petiole, hastate and venation pinnate, reniform-cordate with triple ribbed venation or palmate with palmate venation, basifixed or rarely peltate. Heads in compound corymbs or panicles, homogamous. Heads all discoid, with bracteoles. Florets hermaphroditic, fertile, tubular, 5-lobed, white or pale yellow. Base of anthers obtuse or tailed. Style branches with continuous stigmatic areas. Achenes cylindric, tapered at both ends, glabrous. Pappus of many fine bristles.

About 60 species in Asia and eastern Europe, mainly in China and Japan; three species in Taiwan.

Jeffrey, C. & Y. L. Chen. 1984. Taxonomic studies on the tribe Senecioneae (Compositae) of Eastern Asia. Kew. Bull. 39(2): 205-446.


KEY TO SPECIES

1 Leaves hastate-triangular, lower surface not arachnoid.   Parasenecio nokoensis
+ Leaves reniform-cordate, lower surface arachnoid.   (2)
       
2 (1) Involucral bracts 5; heads 5-7-flowered.   Parasenecio hwangshanica
+ Involucral bracts 2 or 3; heads 1- or 2- flowered.   Parasenecio monantha

Lower Taxa

Related Synonym(s):


 

Related Objects  

Photos by The Biodiversity of the Hengduan Mountains Project  
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