

Alaska Springbeauty Claytonia sarmentosa
Alaska Springbeauty is a perennial wildflower native to Alaska and Canada. A host for pollen-specialist native bees.
More about this plant
Claytonia sarmentosa is a species of flowering plant in the genus Claytonia, which is indigenous to the mountains of the Lake Baikal region and eastern Siberia and northwestern North America including Alaska, Yukon and northern British Columbia. A widespread species of the mountain chains of Asia and North America, Claytonia sarmentosa has been subject of differing taxonomic opinions with problematic confusion with Claytonia arctica and C. scammaniana. A taxonomic revision including an analysis of the Udokan Mountains population and comparison with Alaskan material was published in 2006. Wikipedia →
Growing & care
USDA PLANTS · TRY- Lifespan
- Perennial
Wildlife & pollinators
How pollinator value is scored →❧ Caterpillar hosts Documented caterpillar host
Recorded feeding on Claytonia in North America, including:
✦ Bees specialist-bee host
Specialist native bees depend on it.
Some native bees are pollen specialists (oligolectic) — they raise young only on pollen from particular plant genera. Claytonia is a recorded specialist-bee host, so losing it can mean losing the bee that relies on it.
How we know this (1) Methods & honest limits
We take the plant’s U.S. county range and look up each county’s long-term climate, then summarise: native rainfall = the median annual rainfall across its counties; heat tolerance = the warm end (90th percentile) of average temperature across its range (mirroring how our cold-hardiness floor uses an extreme). Counties + medians blunt the roadside/observer bias that makes point-level climate unreliable. Needs at least five placeable counties.
Honest limits: A realized, sampling-biased niche (where it has been recorded, not its physiological optimum), and county climate is coarse — large Western counties span deserts and mountains. Derived guide, never a measured fact.
Sources for this entry (13) Open & cited
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