Rydberg’s Springbeauty - Claytonia multiscapa
Claytonia lanceolata var. flava, Claytonia rosea [of some authors]
* (see State Rank Reason below)
MNPS Threat Rank
State Rank Reason (see State Rank above)
See rank details.
- Details on Status Ranking and Review
Score0 - Large: Generally >100,000 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.
CommentMontana contributes a significant portion of the species' range.
Area of Occupancy
Score0 - High: Occurs in >25 Subwatersheds (6th Code HUC’s).
Score0-1 - Low to Moderate.
Score0-1 - Stable to Minor Declines:
CommentTrends unknown, though populations are likely stable or experiencing only minor declines.
Score0-1 - Low to Medium.
CommentThreats to the species' viability appear to be insignificant to low.
Score0-1 - Low to Moderate Vulnerability.
Raw Conservation Status Score
2 to 6 total points scored out of a possible 19.
Perennial from globose tubers. Stems 10–30 cm. Basal leaves few or absent, linear to narrowly lanceolate, 1-8 cm long; stem leaves sessile, linear to narrowly lanceolate, 2–10 cm long. Inflorescence multibracteate. Flowers: sepals 3–5 mm long; petals white to yellow or yellow-orange spots at base. Seeds 1-2 mm diameter. (adapted from: Miller, 2003, in Fl. N. Amer., Vol. 4).
Miller (2003) in FNA, recognizes the white and yellow-flowered plants as C. multiscapa and the pink, rose or magenta flowered plants as C. rosea. Lesica (2012) combines the two under the name C. rosea.
British Columbia to Saskatchewan south through Montana and Wyoming.
Observations in Montana Natural Heritage Program Database
Number of Observations:
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Vernally moist soil of grasslands, steppe, meadows, open forest; montane to lower subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Shelly, J. S. 1989. Conservation status of Claytonia lanceolata var. flava, a candidate threatened taxon. Unpubl. Rep., USDI Fish and Wildlife Service, Denver, CO. 39 pp.
- Shelly, J.S. 1989. Status review of Claytonia lanceolata var. Flava, Beaverhead, Deerlodge and Gallatin National Forests, Montana. Unpublished report. Montana Natural Heritage Program, Helena, MT 42 pp.