Dryadoideae

subfamily of family Rosaceae

The Dryadoideae subfamily of the Rosaceae consists of four genera.[1] These genera are unusual in the family Rosaceae because they all have the nitrogen-fixing bacteria called Frankia in their roots.[2] Dryadoideae plants are subshrubs, shrubs, or small trees. Their fruits are either an achene or an aggregate of achenes.[1]

Dryadoideae
Dryas drummondii6.jpg
Dryas × suendermannii
Scientific classification
Kingdom:
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Subfamily:
Dryadoideae

Genera

Cercocarpus Kunth
Chamaebatia Benth.
Dryas L.
Purshia DC. ex Poir. (including Cowania)

NotesEdit

  1. 1.0 1.1 Potter, D., et al. (2007). Phylogeny and classification of Rosaceae. Plant Systematics and Evolution. 266(1–2): 5–43.
  2. Swensen, S.M.; Mullin, B.C. (1997). The impact of molecular systematics on hypotheses for the evolution of root nodule symbioses and implications for expanding symbioses to new host plant genera. Plant and Soil. 194: 185–192.