UW Burke Herbarium species comparison

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Balsamorhiza deltoidea

Balsamorhiza hookeri

deltoid balsamroot, Puget balsamroot
Balsamorhiza hookeri

hairy balsamroot, hare's head balsamroot, Hooker's balsamroot
Habit Perennial herb from a large taproot. Perennial from a carrot-like taproot, the lax, nearly naked stems 0.6-4 dm. tall.
Leaves

All basal; large with triangular or cordate base, sparsely hairy.

Basal leaves 1-4 dm. long, pinnatifid, the divisions entire to deeply toothed;

stem leaves often with one or more inconspicuous, linear or pinnatifid bracts near the base.
Flowers

Large, yellow sunflower-like heads with slightly hairy involucres.

Heads solitary;

involucre bracts linear to ovate, long-hairy at least marginally;

rays 10-16, 1.5-3.5 cm. long.
Fruits

Achene glabrous.

Achenes glabrous.

Balsamorhiza deltoidea

Balsamorhiza hookeri
Identification notes Similar to B. sagitatta, but differs in being less densely pubescent, with the herbage and involucre green rather than grayish. Our other species with pinnatifid leaves, Balsamorhiza incana, is silky-woolly throughout, while B. hookeri is sparcely hairy.
Flowering time March-July April-June
Habitat Prairies, open slopes, and forest edge at low elevations. Dry, open areas at low to moderate elevations, usually in lithosol (rocky, cobbly soil).
Distribution
Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California.
[WildflowerSearch map]
[BONAP county map]
Occurring east of the Cascades crest in central Washington; Washington to California, east to western Montana, southern Idaho, and Nevada.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Review Group 2 in Washington (WANHP) Not of concern
Sibling taxa
B. ×bonseri, B. careyana, B. careyana × B. hookeri, B. hookeri, B. hookeri × B. sagittata, B. incana, B. rosea, B. sagittata, B. serrata, B. ×terebinthacea, B. ×tomentosa
B. ×bonseri, B. careyana, B. careyana × B. hookeri, B. deltoidea, B. hookeri × B. sagittata, B. incana, B. rosea, B. sagittata, B. serrata, B. ×terebinthacea, B. ×tomentosa
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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