Calflora, a 501c3 non-profit
Distribution by County   12168    
Achillea millefolium  L.  var. borealis  (Bong.) Farw.

(not an active name)
Boreal yarrow
Achillea millefolium var. borealis is a perennial herb that is not native to California.
also called Achillea millefolium
Record Count by County

Alameda: 118 Lake: 29 Plumas: 182 Siskiyou: 155
Alpine: 40 Lassen: 184 Riverside: 53 Solano: 103
Amador: 17 Los Angeles: 184 Sacramento: 18 Sonoma: 296
Butte: 69 Madera: 19 San Benito: 238 Stanislaus: 16
Calaveras: 21 Marin: 716 San Bernardino: 101 Sutter: 12
Colusa: 18 Mariposa: 86 San Diego: 238 Tehama: 61
Contra Costa: 137 Mendocino: 135 San Francisco: 180 Trinity: 68
Del Norte: 57 Merced: 6 San Joaquin: 3 Tulare: 137
El Dorado: 125 Modoc: 217 San Luis Obispo: 188 Tuolumne: 53
Fresno: 141 Mono: 161 San Mateo: 466 Ventura: 125
Glenn: 5 Monterey: 227 Santa Barbara: 192 Yolo: 13
Humboldt: 145 Napa: 63 Santa Clara: 251 Yuba: 7
Inyo: 48 Nevada: 129 Santa Cruz: 125
Kern: 122 Orange: 75 Shasta: 70
Kings: 3 Placer: 130 Sierra: 92

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: 05/11/2024).