Plants of Casa Grande Ruins National Monument - NPS Inventory ...

Vegetation Mapping
18
Sphaeralcea ambigua
sparse shrubland
This alliance is found in the south–central portion of the Adamsville unit, with
one half of the polygon surrounding an old cotton gin site. In the center of
the northern part are the concrete remains of the cotton gin, where a single
Prosopis velutina specimen is found. The remainder of the type is composed of
shrubs in limited numbers (