Hooker's Balsamroot - Balsamorhiza hookeri
State Rank Reason (see State Rank above)
Known in Montana only from the vicinity of Monida and within the Mount Haggin WMA.
- Details on Status Ranking and Review
Score2 - Small: Generally 2,000-10,000 individuals.
Score2 - Regional or State Endemic or Small Montana Range: Generally restricted to an area <100,000 sq. miles (equivalent to 2/3 the size of Montana or less) or Montana contributes 50% or more of the species’ range or populations OR limited to 2-3 Sub-basins in Montana.
CommentPeripheral and sporadically distributed in southwest Montana.
Area of Occupancy
Score3 - Very Low: Generally occurring in 3 or fewer Subwatersheds (6th Code HUC’s).
Score1 - Moderate: Species is restricted to a specific habitat that is more widely distributed or to several restricted habitats and is typically dependent upon relatively unaltered, good-quality habitat (C Values of 5-7).
ScoreNA - Rank factor not assessed.
CommentTrends are unknown, though populations are likely stable, experiencing only minor declines or perhaps even expanding.
Score0-1 - Low to Medium.
Score0-1 - Low to Moderate Vulnerability.
Raw Conservation Status Score
8 to 10 total points scored out of a possible 16 (Rarity factors and threats only).
Hooker's Balsamroot is a perennial with a leafless flowering stem 10-40 cm tall, arising from a carrot-like taproot. The basal leaves are 10-40 cm long and pinnately-divided into narrow segments. Foliage is pubescent with coarse, firm hairs. The solitary flower heads resemble those of a sunflower. The narrow involucral bracts are long-hairy, at least on margins. The 10-16 yellow rays are 1.5-3.5 cm long. The achene is glabrous.
Our plants are variety hispidula (Sharp) Cronquist
Flowering in late June - early July.
Distinguished from Balsamorhiza incana and B. macrophylla by the rays mostly less than 3 cm long, and foliage with coarse, firm hairs.
WA to MT south to CA, AZ and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Ecological Systems Associated with this Species
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Lesica, P., P. Husby, and S. V. Cooper. 1998. Noteworthy collections: Montana. Madrono 45:328-330.