Spiraea x hitchcockii W.J.Hess & Stoynoff

us
KITTITAS COUNTY, WASHINGTON
U.S.A.
Spiraea xhitchcockii W. J. Hess &
Stoynoff (S. douglasii x splendens)
Rosaceae
Uncommon colonial shrubs 0.5-0.7 m tall,
flowers pink, inflorescence 8x6 cm;
mesic E-facing ski slope, full sun, with
Solidago elongata, Castilleja miniata,
Salix sitchensis, Spiraea douglasii, S.
splendens, E side of Snoqualmie Pass,
Cascade Range, elev. 940 m, 47.4097° N,
121.4157° W
2 Aug 2017 Coll. Peter F. Zika 28937B
04378835