Belongs within: Roperculina.
Contains: Horkelia, Ivesia.
Potentilla, cinquefoils, is a northern temperate genus of herbs and shrubs with usually yellow flowers (Hickman 1993).
Characters (from Hickman 1993): Annual to shrub; odor resinous or absent. Leaves generally basal, odd-1-pinnate to 1-palmate or 1-ternate; leaflets more or less toothed or lobed, terminal generally more or less equal to lateral. Inflorescence a cyme, generally more or less open; pedicels generally more or less straight. Flower with hypanthium more or less shallow; bractlets 5; sepals generally 5, more or less triangular; petals generally 5, generally the same size as or larger than sepals, generally more or less widely obcordate, generally yellow; stamens generally 20; pistils generally many, styles generally jointed near tip. Fruit an achene.
<==Potentilla Linnaeus 1753A61 [incl. DuchesneaEH03]
|--+--P. anserinaEH03
| | |--P. a. ssp. anserina [incl. P. anserina var. sericea]H93
| | `--P. a. ssp. pacifica [incl. P. egedii var. grandis]H93
| `--+--P. peduncularisEH03
| `--P. stenophyllaEH03
`--+--P. micranthaEH03
`--+--+--*P. reptansEH03
| `--P. indica [=Duchesnea indica]EH03
`--+--P. dickinsiiEH03
|--P. fragarioidesEH03
`--+--+--P. chinensisEH03
| |--P. multifidaEH03
| `--P. niveaEH03
`--+--P. norvegicaEH03 [incl. P. norvegica ssp. monspeliensisH93]
`--+--HorkeliaEH03
`--IvesiaEH03
Potentilla incertae sedis:
P. adenophyllaH03
P. anglicaH93
P. anserinoides Raoul 1844 [=P. anserina var. anserinoides (Raoul) Hooker 1852]A61
P. argenteaBT72
P. argyrophyllaO88
|--P. a. var. argyrophyllaO88
`--P. a. var. atrosanguineaO88
P. biennisH93
P. bifloraO88
P. borneensisH03
P. brassiiH03
P. caliginosaO88
P. caulescensPS98
P. concinna [incl. P. beanii, P. concinna var. divisa]H93
P. coriandrifoliaO88
P. cristaeH93
P. cuneataO88
P. diversifolia [incl. P. glaucophylla]H93
P. drummondiiH93
|--P. d. ssp. drummondiiH93
|--P. d. ssp. breweri [incl. P. millefolia var. algida]H93
`--P. d. ssp. bruceaeH93
P. erectaEH03
P. eriocarpaO88
P. exiguaO88
P. flabellifoliaH93
P. forrestiiO88
|--P. f. var. forrestiiO88
`--P. f. var. caespitosaO88
P. frigidaC55a
P. fulgensO88
P. glandulosaD51
|--P. g. ssp. glandulosa [incl. P. glandulosa ssp. typica]H93
|--P. g. ssp. ashlandica [incl. P. glandulosa var. austiniae]H93
|--P. g. ssp. ewaniiH93
|--P. g. ssp. globosa [incl. P. rhomboidea]H93
|--P. g. ssp. hanseniiH93
|--P. g. ssp. nevadensisH93
|--P. g. ssp. pseudorupestrisH93
`--P. g. ssp. reflexaH93
P. gracilisH93
|--P. g. var. gracilisH93
|--P. g. var. elmeri [incl. P. flabelliformis var. inyoensis, P. pectinisecta]H93
|--P. g. var. fastigiata (see below for synonymy)H93
|--P. g. var. flabelliformisH93
`--P. g. var. pulcherrimaH93
P. grayi [=P. flabellifolia var. grayi]H93
P. heptaphyllaS96
P. hickmaniiH93
P. microphyllaO88
|--P. m. var. microphyllaO88
|--P. m. var. achilleifoliaO88
`--P. m. var. commutataO88
P. millefolia [incl. P. millefolia var. klamathensis]H93
P. monanthesO88
P. morefieldiiH93
P. multijugaH93
P. newberryiH93
P. pennsylvanicaC55b [incl. P. pensylvanica var. strigosaH93]
P. polyphyllaO88
P. pusillaS96
P. rectaW69
P. rimicola [=P. wheeleri var. rimicola]H93
P. rivalis [incl. P. rivalis var. millegrana]H93
P. sarmentosaJ23
P. saundersianaO88
P. supinaVB02
P. wheeleriH93
Potentilla gracilis var. fastigiata [incl. P. gracilis var. glabrata, P. gracilis ssp. nuttallii, P. gracilis var. permollis]H93
*Type species of generic name indicated
References
[A61] Allan, H. H. 1961. Flora of New Zealand vol. 1. Indigenous Tracheophyta: Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledones. R. E. Owen, Government Printer: Wellington (New Zealand).
[BT72] Baker, E. W., & D. M. Tuttle. 1972. New species and further notes on the Tetranychoidea mostly from the southwestern United States (Acarina: Tetranychidae and Tenuipalpidae). Smithsonian Contributions to Zoology 116: 1–37.
[C55a] Candolle, A. de. 1855a. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 1. Librairie de Victor Masson: Paris.
[C55b] Candolle, A. de. 1855b. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.
[D51] Dobzhansky, T. 1951. Genetics and the Origin of Species 3rd ed. Columbia University Press: New York.
[EH03] Eriksson, T., M. S. Hibbs, A. D. Yoder, C. F. Delwiche & M. J. Donoghue. 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 Science 164 (2): 197–211.
[H03] Heads, M. 2003. Ericaceae in Malesia: vicariance biogeography, terrane tectonics and ecology. Telopea 10 (1): 311–449.
[H93] Hickman, J. C. (ed.) 1993. The Jepson Manual: Higher Plants of California. University of California Press: Berkeley (California).
[J23] James, E. 1823. Account of an Expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and ’20, by order of the Hon. J. C. Calhoun, sec’y of war: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party vol. 1. H. C. Carey & I. Lea: Philadelphia.
[O88] Ohba, H. 1988. The alpine flora of the Nepal Himalayas: an introductory note. In: Ohba, H., & S. B. Malla (eds) The Himalayan Plants vol. 1. The University Museum, University of Tokyo, Bulletin 31: 19–46.
[PS98] Prosser, F., & S. Scortegagna. 1998. Primula recubariensis, a new species of Primula sect. Auricula Duby endemic to the SE Prealps, Italy. Willdenowia 28: 27–46.
[S96] Schatz, H. 1996. Oribatid mites (Oribatida) in alpine dry meadows (Austria, central Alps). In: Mitchell, R., D. J. Horn, G. R. Needham & W. C. Welbourn (eds) Acarology IX vol. 1. Proceedings pp. 633–635. Ohio Biological Survey: Columbus (Ohio).
[VB02] Vijay, S. K., & T. N. Bhardwaja. 2002. Vegetation and phenodynamics of wetlands of central Rajasthan. Journal of the Bombay Natural History Society 99 (3): 573–581.
[W69] Wiens, J. A. 1969. An approach to the study of ecological relationships among grassland birds. Ornithological Monographs 8: 1–93.