Philadelphus microphyllus var. microphyllus A. Gray
Hydrangeaceae
Henrickson (2010)
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T.L. Burgess
3545
1975-07-14
14 July 1975
United States, Texas, Culberson County, Guadalupe Mts. National Park. Upper part of S. McKittrick Drainage, ca. 50m down from Guadalupe Trail crossing streambed. 3.1 km S., 0.4 km E summit Lost Peak.
2209 meters (7246ft)
boulders and cobbles in dry streambed, bordered by riparian forest