U.S.A., Colorado, Montrose, Floor of Paradox Valley 4 miles E. of Bedrock.
1500 meters
1500 m.
On gypsum knolls, floor of valley.
There seem to be no reliable structural or chemical differences separating L. russellii Tuck. from the widely distributed L. rubiformis Wahlb. This collection represents a mounded, pruinose-dealbate ecad of desert soils.