Sisyrinchium idahoense var. occidentale (E.P.Bicknell) D.M.Hend.

y ,
! ms ml
UNIVERSITY OF IDAHO HERBARIUM (ID)
A BIOSYSTEMATIC STUDY OF
ROCKY MOUNTAIN POPULATIONS OF SISYRINCHIUM
Sisyrinchium idahoense E. P. Bicknell
var. occidentale (E. P. Bicknell) D. Henderson
MADISON CO., MONTANA: Tobacco Root Mtns, Willow
Creek Valley, Potosoi Hot Springs, 12.6 mi SW of
Harrison. T3S R2W S7. Elev. 6200*. Meadow
at hot springs with Poa pratensis, Deschampsia
cespitosa, Habenaria dilatata, Juncus ensifolius,
and Carex aurea. Plants abundant, slightly caes-
pitose; perianth blue-violet with yellow "eye";
outer tepals oblanceolate. Plants from this
population with n=32.
Collected by:
A.F.Cholewa 528
and D.M.Henderson
1 July mo
03853650