Balsamorhiza macrolepis
Balsamorhiza lanata
big scale balsam root, California balsamroot
lanate balsamroot, woolly balsamroot, Yreka balsamroot
blades green to gray-green, elliptic to lanceolate, 15–40+ × 4–14 cm (1–2-pinnatifid, primary lobes ovate to linear, 15–70 × 3–15 mm, usually lobed or toothed), bases cuneate to truncate, ultimate margins usually entire (slightly revolute, not ciliate), apices rounded to acute, faces strigillose to subvelutinous or tomentose (sometimes gland-dotted as well).
blades white to grayish, lanceolate to linear-oblong, 10–20 × 3–6(–8) cm (1–2-pinnatifid, primary lobes lance-linear to oblong, mostly 5–40 × 1–10 mm, secondary lobes or teeth antrorse, divergent), bases cuneate to truncate, ultimate margins mostly entire (± revolute), apices rounded to acute, faces densely lanate-tomentose to villous.
hemispheric, (15–)20–30 mm diam.
± hemispheric, 12–20 mm diam.
20–30+ mm.
(10–)15–20 mm (abaxially puberulent or glabrous).
ovate or oblong to lanceolate, 12–30(–40) mm, usually surpassing inner, apices obtuse to acute or attenuate.
lanceolate to linear, 10–20 mm, sometimes surpassing inner, apices acute to attenuate.
usually borne singly.
borne singly.
Balsamorhiza macrolepis
Balsamorhiza lanata
Of conservation concern.
Balsamorhiza macrolepis grows in the western foothills of central Sierra Nevada and in the eastern San Francisco Bay area (there mostly extirpated). The tall habit, exhibiting gigas characteristics, suggests that, like B. macrophylla, this taxon may be a polyploid. No hybrids with other species have been noted.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Balsamorhiza lanata is known from a relatively restricted area in northern California and southern Oregon. No hybrids between it and other species have been noted.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
OR
Flora NW
PNW Herbaria
