Burke: Balsamorhiza rosea vs. Balsamorhiza deltoidea

	Balsamorhiza rosea	Balsamorhiza deltoidea
	rosy balsamroot	deltoid balsamroot, Puget balsamroot
Habit	Perennial from a simple crown, 0.6-3 dm. tall.	Perennial herb from a large taproot.
Leaves	Basal leaves petiolate, the blade deltoid with rounded teeth or nearly pinnatifid, 3-20 cm. long and 1-10 cm. wide, with short, appressed hairs aligned in one direction, prominately netted-veined; stems with a pair of linear leaves near the base.	All basal; large with triangular or cordate base, sparsely hairy.
Flowers	Heads small, the rays 1-2.5 cm long but often 1 cm. broad, usually 10-16, becoming roseate in age.	Large, yellow sunflower-like heads with slightly hairy involucres.
Fruits	Achenes with appressed hairs aligned in one direction.	Achene glabrous.

	Balsamorhiza rosea	Balsamorhiza deltoidea
Identification notes	The short, broad ray flowers that become orange-red with age are unique to this species of Balsamorhiza.	Similar to B. sagitatta, but differs in being less densely pubescent, with the herbage and involucre green rather than grayish.
Flowering time	April-May	March-July
Habitat	Dry, rocky slopes at low elevation.	Prairies, open slopes, and forest edge at low elevations.
Distribution	Occurring east of the Cascades crest in south-central Washington; south-central Washington to northeastern Oregon. [WildflowerSearch map] [BONAP county map]	Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Review Group 2 in Washington (WANHP)
Sibling taxa	B. ×bonseri, B. careyana, B. careyana × B. hookeri, B. deltoidea, B. hookeri, B. hookeri × B. sagittata, B. incana, B. sagittata, B. serrata, B. ×terebinthacea, B. ×tomentosa	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
Web links	Local floras: OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Balsamorhiza rosea

Balsamorhiza deltoidea

rosy balsamroot

deltoid balsamroot, Puget balsamroot

Habit

Perennial from a simple crown, 0.6-3 dm. tall.

Perennial herb from a large taproot.

Leaves

Basal leaves petiolate, the blade deltoid with rounded teeth or nearly pinnatifid, 3-20 cm. long and 1-10 cm. wide, with short, appressed hairs aligned in one direction, prominately netted-veined;

stems with a pair of linear leaves near the base.

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

Flowers

Heads small, the rays 1-2.5 cm long but often 1 cm. broad, usually 10-16, becoming roseate in age.

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

Fruits

Achenes with appressed hairs aligned in one direction.

Achene glabrous.