The plant is native to California and northern Baja California, where it is a common member of the chaparral and coastal sage scrub plant communities in many regions, desert chaparral in the Colorado Desert, and other habitats.
Malacothamnus fasciculatus is a shrub with a slender, multibranched stem growing 1–5 metres (3.3–16.4 ft) in height. It is coated thinly to densely in white or brownish hairs.
The leaves are oval or rounded in shape, 2 to 11 centimeters long, and sometimes divided into lobes. The inflorescence is an elongated cluster of many pale pink flowers with petals under a centimeter long.
- Varieties of the species currently named include:
- Malacothamnus fasciculatus var. catalinensis — Santa Catalina Island bush-mallow; endemic to Catalina Island, one of the Channel Islands of California.
- Malacothamnus fasciculatus var. fasciculatus.
- Malacothamnus fasciculatus var. nesioticus — Santa Cruz Island bush mallow; a rare plant endemic to Santa Cruz Island, one of the Channel Islands, on which only ~120 individual plants remain. It is federally listed as an endangered species.
- Malacothamnus fasciculatus var. nuttallii — endemic to California in the San Francisco Bay Area, Outer South Coast Ranges, and Western Transverse Ranges.
- ITIS Report: Malacothamnus fasciculatus" (Nutt. ex Torr. & A. Gray) Greene . accessed 1.14.2014.
- USDA . accessed 1.14.2014.
- CalFlora . accessed 1.14.2014
- CalFlora Database: Malacothamnus fasciculatus var. catalinensis.
- CalFlora Database: Malacothamnus fasciculatus var. nesioticus
- Center for Plant Conservation
- CalFlora Database: Malacothamnus fasciculatus var. nuttallii.
|Wikimedia Commons has media related to Malacothamnus fasciculatus.|
- CalFlora Database: Malacothamnus fasciculatus (chaparral mallow)
- Jepson Manual Treatment of Malacothamnus fasciculatus
- USDA Plants Profile: Malacothamnus fasciculatus
- Malacothamnus fasciculatus — U.C. Photo gallery
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