Balsamorhiza serrata
Balsamorhiza careyana
serrate balsam root, serrated balsamroot, serrrate balsamroot, tooth balsamroot
Carey's balsamroot
blades pale green to gray-green, lanceolate or lance-ovate, 5–15(–20+) × 2–5(–10) cm (earliest sometimes, later seldom, pinnately lobed, mostly toward tips), bases usually cuneate to subtruncate, sometimes cordate, margins usually dentate to serrate, apices acute, faces hirsutulous to scabrous.
blades green, rounded-deltate or deltate to triangular-deltate, 15–25 × 6–15 cm, bases cordate or hastate to truncate, margins usually entire, sometimes crenate (to dentate near bases), apices acute to attenuate, faces finely hispidulous to hirtellous (gland-dotted as well).
campanulate, 15–25 mm diam.
hemispheric to turbinate or campanulate, 12–20 mm diam.
(20–)30–40.
20–30(–40) mm (cypselae strigose or glabrous).
lanceolate to lance-triangular, 10–22 mm, shorter than inner, apices acute to attenuate (margins ciliate).
oblong to lanceolate or linear, 15–25 mm, usually surpassing inner, apices acute to attenuate.
usually borne singly.
usually (2–)3+, sometimes borne singly.
= 38.
= 38.
Balsamorhiza serrata
Balsamorhiza careyana
Balsamorhiza serrata hybridizes with B. careyana. Leaves of the hybrids tend to be prostrate rather than erect. Most of the hybrids display the larger size of B. careyana and lack the pubescence of the heads; serrata-like plants never develop more than a single head nor do they have the pubescence of the cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Hybrids involving Balsamorhiza careyana and B. deltoidea occur near the Columbia River Gorge; intermediates are found to the east and south. In northern Oregon, plants in some populations have glabrous cypselae and some populations are mixed. The hairiness may come from B. rosea; B. rosea and B. careyana may hybridize profusely, producing mostly plants with the stature of B. careyana and with the relatively short, brick-red ray corollas of B. rosea. Hybridization also occurs, occasionally, between B. careyana and B. sagittata; B. careyana also hybridizes with any species of sect. Balsamorhiza with which it comes in contact. Plants called Balsamorhiza careyana var. intermedia usually have crenate leaf margins and glabrous cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
