Index / Search / Laennecia coulteri
§1 Plant
Laennecia coulteri (A. Gray) G.L. Nesom
vernacular Coulter's horseweed — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Laennecia
Native status, by region
- L48 Lower 48 States Native
County-level range
· 55 counties across 6 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 55 counties across 6 states/territories.
Arizona view state ↗ 6 N ▾
California view state ↗ 21 N ▾
- Amador 06005
- Contra Costa 06013
- Imperial 06025
- Inyo 06027
- Kern 06029
- Monterey 06053
- Nevada 06057
- Orange 06059
- Riverside 06065
- Sacramento 06067
- San Bernardino 06071
- San Diego 06073
- San Joaquin 06077
- San Luis Obispo 06079
- Santa Barbara 06083
- Santa Clara 06085
- Santa Cruz 06087
- Sonoma 06097
- Stanislaus 06099
- Tulare 06107
- Ventura 06111
Nevada view state ↗ 2 N ▾
New Mexico view state ↗ 7 N ▾
Texas view state ↗ 17 N ▾
Utah view state ↗ 2 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/LACO13 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3111858 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T16:37:38Z