Mentzelia canyonensis J. J. Schenk, W. Hodgson and L. Hufford
Loasaceae
Wendy C. Hodgson (18 December 2014)
Kate Watters
169
2010-09-23
Vera Markgraf
USA, Arizona, Coconino County, Grand Canyon National Park, Manzanita Canyon, within 1/6 mile of Bright Angel Creek, north side of Manzanita Creek, 12S 407495 E, 4004949 N, NAD 83/84.
4 plants in population on low-gradient cobbly slope adjacent and at small stream (fed by upper springs), small suffrutescent shrubs, leaves bright chartreuse-green, flowers closed up (mid- to late-morning), petals cream-white.