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Distribution by County   459    
Arabis holboellii  Hornem.  var. retrofracta  (Graham) Rydb.

(not an active name)
Backward splitting holboell's rock cress,   Holboell's rockcress,   Second rockcress
Arabis holboellii var. retrofracta is a perennial herb that is native to California.
also called Boechera retrofracta
Record Count by County

Alpine: 27 Inyo: 47 Mono: 88 Sierra: 28
Amador: 1 Kern: 4 Nevada: 24 Siskiyou: 101
Butte: 2 Lassen: 54 Placer: 15 Tehama: 3
Del Norte: 3 Los Angeles: 2 Plumas: 53 Trinity: 51
El Dorado: 24 Madera: 1 Riverside: 7 Tulare: 16
Fresno: 33 Mariposa: 2 San Bernardino: 48 Tuolumne: 3
Glenn: 2 Mendocino: 3 San Diego: 3 Ventura: 1
Humboldt: 13 Modoc: 34 Shasta: 21

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: 05/12/2024).