General:
Dioecious tree up to 20 m tall; not colonial; branches yellowish-brown to grey; twigs yellowish, smooth.

Leaves:
Alternate, deciduous, simple, triangular, 4-10 cm long, 4-11 cm wide, the bases heart-shaped or squared-off, smooth, finely toothed and hairy, the teeth often callous-tipped, both sides green; leaf stalks 4-14 cm long, often with a pair of glands near the blade; buds finely hairy with fringed scales, resinous.

Flowers:
Borne in catkins; male catkins 5-9 cm long, soon deciduous, with 40-60 stamens; female catkins 8-15 cm long.

Fruits:
Capsules, egg-shaped, carpels 3-4, smooth, short-stalked.

Notes:
Two subspecies apparently occur in BC:

1. Winter buds smooth; emerging leaves long-hairy; flower stalks variable in length ....................ssp. Deltoides

1. Winter buds pubescent; emerging leaves smooth; flower stalks uniform in length (less than 6 mm long)..................... ssp. monilifera (W. Aiton) Eckenwalder

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia

Flower Colour:
Yellow

Blooming Period:
Mid Spring

Fruit/Seed characteristics:
Colour: White
Present over the Spring

Source:  The USDA

Synonyms and Alternate Names:
Monilistus monilifera (Aiton) Raf. ex B.D. Jacks.
Populus besseyana Dode
Populus deltoides var. occidentalis Rydb.
Populus monilifera Aiton
Populus occidentalis (Rydb.) Britton ex Rydb.
Populus sargentii Dode
Populus sargentii var. texana (Sarg.) Correll
Populus texana Sarg.