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Taxon  Report  
Populus angustifolia  E. James
Narrow leaved cottonwood,   Narrowleaf cottonwood
Populus angustifolia is a tree that is native to California, and also found elsewhere in North America and beyond.
California Rare Plant Rank: 2B.2 (rare, threatened, or endangered in CA; common 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
~35 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Populus
Family: Salicaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: riparian

Communities: wetland-riparian, Riparian forest

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTSPopulus Xsennii
PLANTSPopulus balsamifera var. angustifolia
PLANTSPopulus canadensis var. angustifolia
PLANTSPopulus fortissima
PLANTSPopulus salicifolia
Information about  Populus angustifolia from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


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ID Tips on PlantID.net

[Wikipedia] Taxonomy: Where their ranges come into contact, this species will readily hybridize with Populus balsamifera, Populus deltoides, Populus fremontii, and Populus trichocarpa. These hybrids can form extensive populations in some regions. Due to the frequency and morphological consistency of P. angustifolia P. deltoides hybrids, they were initially described as a fully separate species ("P. acuminata") until its hybrid origin was firmly established in the 1980s. (link added by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/19/2024).