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See list of 2 species in this genus
  • 1a. Corolla 25–40 mm wide in life, with subequal petals 10–20 mm long; androecium with 10 stamens; anthers longer than 4 mm, commonly ca. 8 mm long; pedicels 8–15 mm long; petiole gland depressed to stalked, scutelliform, 0.5–1.5 mm in diameter
  • 1b. Corolla 8–10 mm wide in life, with very unequal petals, the longer one 6–8 mm long 
 [Fig. 633]; androecium with 5 stamens [Fig. 633]; anthers shorter than 4 mm, commonly 
ca. 3 mm long; pedicels 1.5–4 mm long; petiole gland stalked, cupuliform, 0.4–0.8 mm 
in diameter

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