Calflora
Taxon  Report   11224    
Micranthes howellii  (Greene) Small
Howell's saxifrage
Micranthes howellii, a dicot, is a perennial herb that is native to California, and also found in Oregon.
also called Saxifraga howellii
California Rare Plant Rank: 4.3 (limited distribution).   CNDDB
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(40 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: Saxifragaceae  
Genus: Micranthes

Wetlands: Equally likely to occur in wetlands and non wetlands

Ultramafic affinity: 3.8 - broad endemic / strong indicator

Communities: Foothill Woodland, wetland-riparian

Name Status:
Accepted by JEF + CNPS
Alternate Names:
JEF + CNPSSaxifraga howellii
PLANTSSaxifraga howellii
More information about  Micranthes howellii
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

CNPS Inventory


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 08/08/2022).