Calflora, a 501c3 non-profit
Distribution by County   477    
Arabis platysperma  A. Gray  var. howellii  (S. Watson) Jeps.

(not an active name)
Howell's broad seeded rock cress,   Howell's pioneer rockcress,   Howell's rockcress
Arabis platysperma var. howellii is a perennial herb that is native to California.
also called Boechera howellii
Record Count by County

Alpine: 14 Madera: 7 Plumas: 4 Trinity: 3
Amador: 1 Mariposa: 12 Shasta: 15 Tulare: 27
El Dorado: 11 Mono: 47 Sierra: 2 Tuolumne: 31
Fresno: 59 Nevada: 9 Siskiyou: 3
Inyo: 34 Placer: 2 Tehama: 3

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/22/2024).