A modern reference to temperate woody plants, including updated content from this site and much new material, can be found at Trees and Shrubs Online.
Rosaceae
A genus of two species in western N. America, belonging to the same tribe of the Rose family as Dryas, Fallugia, and Cowania. Flowers solitary, almost sessile. Carpels one, rarely two, with a short curved, persistent style. Fruit an achene, crowned by the persistent style. The genus is named after F. Pursh, a botanist of German birth who is the author of Flora americae septentrionalis (1814), one of the first works on the flora of N. America.
Some names used by Bean have now been superseded and are no longer familiar. To ensure that all plants can be easily found, under any name, we have cross-referenced to The Plant List, a collaboration between RBG Kew, Missouri Botanical Gardens and other organisations, which aims to provide a currently accepted name for any plant. Not all taxonomists will agree with all Plant List nomenclature, but it provides a baseline to compare names. For each species above, clicking on the Modern Name will link to the entry for that name on The Plant List website.
