All Floras      Advanced Search
FOC Vol. 16 Page 251 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 16 | Asclepiadaceae | Dregea

3. Dregea sinensis Hemsley in F. B. Forbes & Hemsley, J. Linn. Soc., Bot. 26: 115. 1889.

苦绳 ku sheng

Lianas to 8 m, mostly densely tomentose. Stems lenticellate. Petiole 1.5-5 cm; leaf blade ovate-cordate to suborbicular, 2-13 × 2-9 cm, papery, adaxially pubescent to glabrous, base auriculate with sinus 1-1.5 cm deep, apex acute; lateral veins ca. 5 pairs. Inflorescences umbel-like, to 20-flowered; peduncle 3-6 cm. Pedicel slender, ca. 2.5 cm. Sepals ovate-oblong, pubescent. Corolla white outside, purple inside, ca. 1.6 cm in diam.; lobes ovate-oblong, 6-7 × 4-6 mm, ciliate. Corona lobes ovoid, thick, turgid, apex acute. Pollinia elongated, narrowed at base, sometimes introrsely falcate. Ovaries glabrous or pubescent. Stigma head conical, enclosed by anther appendages. Follicles lanceolate in outline, 5-6 × 1-2 cm, obscurely and longitudinally sinuate-striate or transversely plicate-corrugate, apex curved, almost hooklike. Seeds ovate-oblong, 0.9-1.2 cm × 4-6 mm, flattened, marginate; coma 2.5-4.5 cm.

* Two varieties: bushland, open woods; 500-3000 m. Gansu, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan, Zhejiang

1 Ovaries glabrous; follicles obscurely longitudinally sinuate-striate   3a var. sinensis
+ Ovaries pubescent; follicles trans- versely plicate-corrugate   3b var. corrugata

Lower Taxa


Related Objects  
  • Illustration
  • Illustration

    Photos by The Biodiversity of the Hengduan Mountains Project  
  • Image/JPEG (David Boufford)
  • Image/JPEG
  • Image/JPEG (David Boufford)
  • Image/JPEG

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |