Lupinus magnificus |
Lupinus sericeus |
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magnificent lupine, Panamint Mountain lupine |
Pursh's silky lupine, silky lupine |
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Habit | Herbs, perennial, 6–12 dm, white-woolly. | Herbs, perennial, (2–)4–14 dm, silky-strigose to finely hirsute (with both short and long hairs). | ||||||||
Stems | erect, branched at base, hairs 1–3 mm, sharp, stiff. |
erect, ascending, or decumbent, branched distally. |
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Leaves | usually basal; stipules 10–24 mm; petiole 6–30 cm; leaflets 5–9, blades 20–55 × 6–15 mm, adaxial surface densely woolly. |
mostly cauline, basal normally absent; stipules 5–7 mm; petiole 2–14 cm (longer proximally becoming shorter distally); leaflets 5–13, blades 10–60(–90) × 3–11(–19) mm, surfaces usually silky, rarely thinly silky appearing glabrous abaxially. |
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Racemes | 10–45 cm; flowers whorled or not. |
12–25(–42) cm; flowers whorled or spirally arranged. |
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Peduncles | 10–50 cm; bracts deciduous, 4–5 mm. |
2–4 cm; bracts subdeciduous, 5–8 mm. |
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Pedicels | 2–8 mm. |
2–5(–6) mm. |
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Flowers | fragrant, 10–18 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire, 5–11 mm, adaxial lobe, 2-toothed, 5–9 mm; corolla lavender to rose, banner patch yellow turning purple, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate middle to tip. |
8–14(–18) mm; calyx sometimes slightly saccate, abaxial lobe subentire or entire, 5 mm, adaxial lobe 2-fid, 6 mm; corolla pale purple to bright blue, sometimes yellowish or whitish, banner spot white to yellow turning brown, banner well reflexed-recurved at or proximal to midpoint, this 3.5–6 mm proximal to apex, keel moderately curved, banner silky-hairy abaxially, adaxial keel ciliate almost full length, not reaching tip. |
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Legumes | 3–7 cm, densely hairy. |
2–3.7 cm, densely pilosulous. |
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Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
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Seeds | 5–8, tan, 3–4 mm. |
(2 or)3–5(–7). |
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Lupinus magnificus |
Lupinus sericeus |
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Phenology | Flowering May–Aug. | |||||||||
Habitat | Meadows, dry banks, bunchgrass prairies, sagebrush scrub, openings in conifer forests. | |||||||||
Elevation | 200–3100 m. (700–10200 ft.) | |||||||||
Distribution |
California
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AZ; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
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Discussion | Varieties 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus sericeus is widespread and common from the southern interior mountains in British Columbia and southwestern Alberta southward to eastern Washington and eastern Oregon to northern New Mexico and northwestern Arizona, northeastern Nevada through Idaho and Wyoming to the Black Hills in South Dakota. Plants with creamy or white flowers in southeastern Washington are known as subsp. asotinensis. D. Isely (1998) recognized this taxon based on petal color and distribution, but since white and yellow flowers occur throughout the range of Lupinus sericeus, it is not formally recognized here. Lupinus pureriae C. P. Smith may be a hybrid derived in part from L. sericeus, according to an annotation by D. B. Dunn on the holotype (CAS0008254). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | L. aeger-ovium, L. aliumbellatus, L. alpicola, L. amniculi-salicis, L. amplus, L. arceuthinus, L. bakeri, L. bakeri subsp. amplus, L. barbiger, L. blankinshipii, L. buckinghamii, L. comatus, L. diaboli-septem, L. dichrous, L. falsocomatus, L. fikerianus, L. flavicaulis, L. flexuosus, L. garfieldensis, L. habrocomus, L. hermanworkii, L. hiulcoflorus, L. huffmannii, L. jonesii, L. larsonianus, L. leucopsis, L. marianus, L. ornatus, L. puroviridus, L. quercus-jugi, L. ramosus, L. rickeri, L. sericeus subsp. asotinensis, L. sericeus var. asotinensis, L. sericeus var. barbiger, L. sericeus var. fikerianus, L. sericeus var. flexuosus, L. sericeus subsp. huffmannii, L. sericeus var. jonesii, L. sericeus var. wallowensis, L. spiraeaphilus, L. subulatus, L. tuckerianus | |||||||||
Name authority | M. E. Jones: Contr. W. Bot. 8: 26. (1898) | Pursh: Fl. Amer. Sept. 2: 468. (1813) | ||||||||
Web links |