|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Salicaceae||View Description||Dichotomous Key|
|Genus: Populus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Populus trichocarpa Hook.
Habit: Tree < 30 m; crown wide. Stem: twigs brown, in age gray; winter buds finely ciliate, very resinous, fragrant when opening. Leaf: petiole 1/3--1/2 blade, abaxially round, adaxially channeled; blade 3--7 cm, narrowly to widely ovate (sometimes lanceolate on suckers, stressed plants), adaxially green, abaxially glaucous, often stained with brown resin, base round to cordate, tip acute to tapered, margin finely scalloped. Chromosomes: 2n=38.
Ecology: Scattered. Alluvial bottomland, streamsides; Elevation: 5--3050 m. Bioregional Distribution: CA-FP, GB; Distribution Outside California: to Alaska, northern Rocky Mountains, Utah, northern Baja California. Flowering Time: Feb--Apr
Synonyms: Populus balsamifera L. subsp. trichocarpa (Hook.) Brayshaw
Unabridged Note: Treatment as separate sp. supported by molecular data (Cervara et al.). Hybrids with Populus fremontii (Populus ×parryi) reported for California. See note under Populus angustifolia.
eFlora Treatment Author: John O. Sawyer, Jr.
Jepson Online Interchange
Previous taxon: Populus tremuloides
Next taxon: Salix
Citation for this treatment: John O. Sawyer, Jr. 2017. Populus trichocarpa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=39463, accessed on April 29, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 29, 2017.