Where is Robbins' Cinquefoil (Potentilla robbinsiana)
located in the wild?
Potentilla robbinsiana inhabits the exposed alpine zone (1400-1600 meters in elevation) of the White Mountains in New Hampshire. Here, winter winds inhibit insulating winter snows from accumulating, and frost-heaving and rime ice formation are common (Izard-Crowley 1993). The plant grows on cliffs, fellfields, and solifluction terraces with stony, barren, and silty soils derived from erosion of the surrounding bedrock and cobbles of gneiss/schist/quartzite, which contain calcium silicate (Graber 1980, Graber and Brewer 1985, USFWS 1980). Soils are usually moist from frequent precipitation, but are not waterlogged (USFWS 1980). The species is a poor competitor when crowded, and survives best where the ground is scattered with prostrate or matted vegetation -- an uncommon habitat in the White Mountains. Plants also appear to prefer a more southerly aspect. The two populations of Potentilla robbinsiana occupy somewhat contrasting habitats. The larger population occurs in a gravelly soil, while the other, much smaller population occurs on a west-facing cliff face.Plants are very sparse in this challenging environment, but associated species may include: Diapensia lapponica, Solidago cutleri, Arenaria groenlandica, Agrostis borealis, Potentilla tridentata, Vaccinium uliginosum, Loiseleuria procumbens, Rhododendron lapponicum, Juncus trifidus, and Carex bigelowii (Crow 1982).
Known from only two sites: one near Lakes of the Clouds, Mount Washington, and the other 30 km west in Franconia, New Hampshire (Cogbill 1993). Descriptions of the plant as """"formerly also on Mt. Mansf
States & Provinces:
Robbins' Cinquefoil can be found in New Hampshire