Cynanchum

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  C. louiseae

  1a. Corolla purple-black, minutely pubescent on the adaxial surface, with triangular lobes 1.5–3 mm long [Fig. 366]
• Choose this species
  C. rossicum

  1b. Corolla paler, usually pink to maroon or yellow-white, glabrous, with lanceolate lobes 2.5–4.5 mm long

 Show photos of:   Each photo represents one species in this genus.