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Taxon  Report  
Nemacaulis denudata  Nutt.  var. denudata 
Coast woolly heads,   Cottonheads
Nemacaulis denudata var. denudata is an annual herb that is native to California, and also found in Baja California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(141 records)
yellowone or more occurrences
within a 7.5-minute quadrangle
bloom graphic
Bloom Period
Parent: Nemacaulis denudata
Genus: Nemacaulis
Family: Polygonaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: dunes, coastal

Communities: Coastal Strand

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
JEFEriogonum denudatum
JEFEriogonum nemacaulis
JEFNemacaulis nuttallii
Information about  Nemacaulis denudata var. denudata from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (NEDED)

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ID Tips on PlantID.net


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 06/01/2023).