The rose subfamily Rosoideae includes many shrubs and perennial herbs. Only a few are annual herbs.
The following classification is based on the study by Torsten Eriksson and others, published in the International Journal of Plant Science 164: 197-211 (2003; at link below).
some species, classified as Potentilla, may to be included here.
genus Potentilla : the clade Potentilla includes Argentina, Duchesnea, Horkelia, Ivesia, and probably Horkeliella. Potential candidates for inclusion are : the genera Comarella, Purpusia, and Stellariopsis.
External link
Phylogeny of Rosoideae (pdf file) (http://research.yale.edu/yoderlab/pdfs/2003,%20Eriksson%20et%20al,%20IJPS.pdf)
Recent work has identified that the traditional four subfamilies are not all monophyletic, but the structure of the family is still awaiting complete resolution.
* Subfamily Rosoideae: Traditionally composed of those genera bearing small fruits, each of which is an achene or drupelet, and often the fleshy part of the fruit (e.g.
Strawberry) is the hypanthium or the stalk bearing the carpels.
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