- <雌雄異株>と<両性花をつける>の2タイプがある。
http://www.alpinegardensociety.net/diaries/Northumberland/+September+/302/ (Alpine Garden Society) に,キンロバイ (Potentilla fruticosa) に関するつぎの記述がある:
"There are other oddities about this species.
In some parts of its range, for instance Britain and Ireland, it is dioecious (単性); different plants are either male or female.
In other areas, such as the Pyrenees and all of America it is hermaphrodite (両性). "
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