Geoscience Reference
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Fig. 9.2. (above) Killpecker Dunes,
located northeast of Rock Springs—one
of the largest active dune fields in north
America. Dune colonizers in the fore-
ground include indian ricegrass, alkali
wildrye, slimflower scurfpea, veiny
dock, rusty lupine, skeletonplant, basin
big sagebrush, rabbitbrush, and spiny
hopsage. elevation 7,000 feet. Photo by
Ken Driese.
Fig. 9.3. (left) early stages of stabiliza-
tion in the Killpecker Dunes, caused
here by veiny dock ( Rumex venosus ).
As with other dune-colonizing species,
such as slimflower scurfpea and alkali
wildrye, this plant spreads by rhizomes.
Photo by Ken Driese.
 
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