Common in the upper forest levels, often to treeline, very variable in flower size, 1500-3470 m. Endemic to Kenya.
- Agnew, A.D.Q., and Shirley Agnew. 1994. Upland Kenya Wild Flowers: a flora of the ferns and herbaceous flowering plants of upland Kenya. East Africa Natural History Society, P.O. Box 44486, Nairobi, Kenya.
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