Sibbaldia tridentata

Sibbaldia tridentata
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Subfamily:	Rosoideae
Genus:	Sibbaldiopsis; Rydb.
Species:	S. tridentata
Binomial name
	Sibbaldiopsis tridentata; (Aiton) Rydb.
Synonyms
	Potentilla tridentata Aiton; Sibbaldia tridentata (Aiton) Paule & Soják

Sibbaldiopsis is a genus in the plant family Rosaceae containing the single species Sibbaldiopsis tridentata. It was formerly a member of genus Potentilla. Its common names include shrubby fivefingers^[1] and three-toothed cinquefoil. Systemic phylogenetic work has placed S. tridentata closer to Aphanes and Sibbaldia than to Potentilla.(Erikkson et al. 2003)

Sibbaldiopsis tridentata is commonly found in eastern Canada and parts of Greenland, south into the northeastern United States, with disjunct populations extending down the Appalachian Mountains. The southernmost known populations are located in Georgia and North Carolina, and occupy high-elevation rock outcrops and grassy balds.(USDA 2007)

Sibbaldiopsis tridentata is a short (0.3–3 dm tall) woody perennial. It has leaves with 3 palmately arranged leaflets approximately 1–4 cm long which are toothed at the apex (typically three teeth). The leaves are retained in winter, but often with a red coloring. Flowers are small and white, radial, and arranged in a compound bracteate cyme. The individual flowers resemble flowers from the genus Potentilla.(Radford et al. 1968)

Sibbaldiopsis tridentata is listed as endangered in 5 US states.(USDA 2007)

References

^ USDA, NRCS (n.d.). "Sibbaldiopsis tridentata". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 12 November 2015.

Eriksson, Torsten; Hibbs, Malin S.; Yoder, Anne D.; Delwiche, Charles F.; Donoghue, Michael J. (2003). "The Phylogeny of Rosoideae (Rosaceae) Based on Sequences of the Internal Transcribed Spacers (ITS) of Nuclear Ribosomal DNA and the trnL/F Region of Chloroplast DNA". International Journal of Plant Sciences. 164 (2): 197–211. doi:10.1086/346163.
Radford AE, HE Ahles, and CR Bell. 1964 Manual of the vascular flora of the Carolinas. Chapel Hill Press: Chapel Hill, NC
USDA PLANTS National Database. 2007 [1]

[1] USDA, NRCS (n.d.). "Sibbaldiopsis tridentata". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 12 November 2015.

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