Flora of North America species comparison

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Ivesia rhypara var. rhypara
Photo is of parent taxon

grimy mousetail
Habit Plants (4–)8–30 cm diam.
Stems

(0.3–)0.4–1.5(–2) dm, usually exceeding leaves by more than 2 cm.
Inflorescences

10–60(–100)-flowered, (1–)2–5(–7) cm diam.

Ivesia rhypara var. rhypara
Phenology Flowering summer.
Habitat Scarcely or cryptically petrophytic in ash tuff bedrock overlain by dry soil and pulverized rubble, in sagebrush communities, sometimes juniper woodlands
Elevation 1400–1900 m (4600–6200 ft)
Distribution
from FNA
NV; OR
[BONAP county map]
Discussion

Of conservation concern.

Variety rhypara is known from widely scattered locations in central Malheur and southeastern Lake counties, Oregon, and in northern Washoe, Humboldt, and Elko counties, Nevada. Although not overtly petrophytic, plants are generally associated with crevices in the underlying bedrock (E. M. Clark and W. H. Clark 2003). They might thereby benefit from a more favorable water relationship, allowing them to be in full bloom when most associated species are summer-dormant.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 9, p. 229.
Parent taxa Rosaceae > subfam. Rosoideae > tribe Potentilleae > Ivesia > sect. Setosae > Ivesia rhypara
Sibling taxa
I. rhypara var. shellyi
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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