UCR - University of California, Riverside Herbarium - Vascular Plants (UCR)
UCR0099618
UCR-BPS-198356
UCR-198356
Mentzelia congesta Torr. & Gray
Loasaceae
Steve Boyd
11936
2008-05-01
2008-5-1
Valentin Arvizu
United States, California, Kern, Piute Mountains, lower Esperanza Canyon at eastern base of Sorrell Peak and western edge of Kelso Valley
35.41861 -118.25611
1372 meters (4500ft)
Alluvial flats and moderate to steep slopes, granitic substrate with large boulder outcrops, loose, decomposed granite soils. Vegetation recently burned (2006 or 2007), formerly dominated by scrub of Artemisia tridentata, Chrysothamnus nauseosus, Yucca brevifolia on flats, drier slopes scrubby woodland of Pinus sabiniana, P. monophytlla, Quercus wislizenii, Q. chrysolepis, Fremontodendron californicum, etc.
Flowering
Annual, flowers yellow, bracts prominent with large white patch in center. Locally common on slope.