LOASACEAE (Loasa family)

Mentzelia albicaulis (Dougl. ex Hook.)Dougl. ex Torr. & Gray whitestem blazingstar [US; Arizona; Yavapai County; Prescott; T13N, R2W, S7; 5,760 feet][along Aspen Creek, 200 m southwest of Aspen Acres Dr., Rancho Vista Hills; April 20, 1997; Collected & identified by Debby Denny & Chuck Walker; #AZ436]

Mentzelia albicaulis (Dougl. ex Hook.)Dougl. ex Torr. & Gray whitestem blazingstar [US; California; Lassen County; T36N, R15E, S18; 40 deg. 59.23'N, 120 deg. 18.61'W; 6,120 feet][sagebrush habitat, on west side of 4WD road, 10 m southwest of Dodge Spring; June 1, 2005; Collected by Chuck Walker; Identified by Mike Dolan & Chuck Walker; #CA235]

Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray smoothstem blazingstar [US; Washington; Spokane County; Spokane; T25N, R42E, S25; 1,900 feet][east side of railroad tracks, one mile south of I-90, 0.5 miles east of Latah Creek; August 6, 1998; Collected & identified by Chuck Walker; #WA98]

Mentzelia nuda (Pursh) Torr. & Gray bractless blazingstar [US; Arizona; Yavapai County; Prescott; T14N, R2W, S34; 5,400 feet][south side of Highway 69, on bank leading down to Memorial Cemetery; June 11, 1993; Collected & identified by Chuck Walker; #AZ110]

Mentzelia oligosperma Nutt. ex Sims chickenthief [US; Illinois; Monroe County; Fults; T4S, R10W, S27; 38 deg. 9.44'N, 90 deg. 11.467'W; 600 feet][at edge of limestone cliff, Fults Hill Prairie Nature Preserve; July 22, 2002; Collected by Chuck Walker; Identified by Dr. Mark A. Basinger; #IL400]