Lupinus croceus |
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Mt. Eddy lupine, saffron-flower lupine |
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Habit | Herbs, perennial, 4–6 dm, green, hairy. |
Stems | erect or ascending, clustered, unbranched or branched. |
Leaves | cauline; stipules not leaflike, green to silvery, 4–10 mm; petiole 2–8 cm; leaflets 5–9, blades 30–60 × 3–10 mm, adaxial surface pubescent or glabrous. |
Racemes | 6–28 cm; flowers whorled or not. |
Peduncles | 2–6 cm; bracts tardily deciduous, 2–7 mm. |
Pedicels | 3–6 mm. |
Flowers | 12–15 mm; calyx bulge or spur 0–1 mm, abaxial lobe 2 or 3-toothed, 6–7 mm, adaxial lobe 2-toothed, 4–6 mm; corolla bright yellow to orange-yellow, banner usually glabrous abaxially, sparsely hairy on ridge, keel upcurved, glabrous. |
Legumes | 2–3.5 cm, hairy. |
Cotyledons | deciduous, petiolate. |
Seeds | 3–5, mottled tan, 6–8 mm. |
Lupinus croceus |
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Phenology | Flowering May–Aug. |
Habitat | Dry, rocky places, yellow pine and fir forests, montane chaparral. |
Elevation | 900–2700 m. [3000–8900 ft.] |
Distribution |
CA
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Discussion | Lupinus croceus is known from the Cascade and Klamath ranges. Herbs with spreading hairs and subequal calyx lobes have been called var. pilosellus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Synonyms | L. croceus var. pilosellus, L. pilosellus |
Name authority | Eastwood: Leafl. W. Bot. 2: 126. (1938) |
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