Crataegus douglasii var. suksdorfii Lindl. Sarg.
black hawthorn
Rosaceae (Rose family)

Introduction to Vascular Plants


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E-Flora BC Static Map

Distribution of Crataegus douglasii var. suksdorfii
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View a key to the hawthorns of the Pacific Coast (from Alaska to California), and species notes, by Jim Phipps.

Species Information

Medium to tall shrub 1-7 m tall, with stout, straight thorns 1-2 (3) cm long; bark grey or brownish, rough and scaly.
Alternate, deciduous, egg-shaped to oval, 3-6 cm long, irregularly toothed, the top end often with 5 to 9 shallow lobes, somewhat thick and leathery, dark green above, paler below, nearly smooth to hairy.
Inflorescences short, terminal or axillary clusters; flowers several to many, stalked, 1-1.5 cm across; corollas white, the petals 5, nearly circular, 4-7 mm long; calyces 5-lobed, the lobes triangular, somewhat long-hairy toward the tip; ovaries inferior, smooth to short-curly-hairy, the styles usually 5; stamens 10 to 20.
Berry-like pomes (like miniature apples), globe- to egg-shaped, about 1 cm long, blackish-purple, smooth; stones (nutlets) 2 to 5, 1-seeded.
Two varieties occur in BC:

1. Flowers mostly with 10 stamens; ovaries often hairy; leaves often weakly lobed above the middle as well as saw-toothed; plants from largely east of the Coast-Cascade Mtns., the common variety................. var. douglasii

1. Flowers mostly with 20 stamens; ovaries usually smooth; leaves merely 1- to 2-times saw-toothed; plants from west of the Cascade Mtns........................ var. suksdorfii Sarg.

SourceThe Illustrated Flora of British Columbia

Habitat and Range

Moist to mesic, open rocky slopes, bluffs, streambanks, lakeshores, gullies, thickets, edges of forests in the lowland to montane zones; frequent in S BC north to 56o N; N to S AK, E to ON and S to SD, WY and CA.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Crataegus suksdorfii (Sarg.) Kruschke