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| Lupinus sulphureus | |
|---|---|
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| Lupinus sulphureus ssp. kincaidii | |
| Conservation status | |
 Secure (NatureServe) | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Lupinus |
| Species: | L. sulphureus |
| Binomial name | |
| Lupinus sulphureus Douglas | |
| Synonyms | |
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Lupinus sulphureus (sulphur lupine, sulphur-flower lupine) is a species of lupine, a flowering plant of the legume family, Fabaceae.
Description
It is a perennial herbaceous plant growing to 40 to 80 cm tall. The leaves are palmately compound, with 7 to 13 leaflets each 2 to 5 cm long. The flowers are produced in whorls on a spike 12 to 20 cm long.
Taxonomy
There are three subspecies:
- Lupinus sulphureus subsp. kincaidii (Kincaid's lupine; syn. L. oreganus subsp. kincaidii). Willamette Valley of western Oregon and parts of southwestern Washington. Flowers purple. Threatened.
- Lupinus sulphureus subsp. subsaccatus. Southern British Columbia south to Oregon. Flowers purple.
- Lupinus sulphureus subsp. sulphureus. Eastern Washington and eastern Oregon. Flowers yellow.
Distribution and habitat
It is native to western North America from southern British Columbia south through Washington to Oregon.
Ecology
Fender's blue butterfly, an endangered species, is host-specific on Kincaid's lupine. Its larvae eat the leaves during the fall and spend the winter among the roots. In spring, the larvae continue to feed on the leaves before pupating.
References
- ^ NatureServe. "Lupinus sulphureus". NatureServe Explorer. Arlington, Virginia. Retrieved 7 December 2024.
- ^ "Lupinus sulphureus Douglas". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 7 December 2024.
External links
- Lupinus sulphureus. Plants of British Columbia.
- Lupinus sulphureus. Burke Museum. University of Washington.
| Taxon identifiers | |
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| Lupinus sulphureus |
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