silvery lupine
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Guadalupe Island lupine
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Herbs, perennial, 1–15 dm, green and glabrous or silvery-hairy; from superficial or shallowly buried root crown. |
Herbs, annual, 2–6 dm, sparsely pubescent. |
erect or ascending, green or purplish, clustered, branched or unbranched. |
erect, usually branched, sometimes unbranched. |
basal and/or cauline; stipules 2–12 mm; petiole 1–15 cm; leaflets (5 or)6–10, blades 10–60 × 4–10 mm, abaxial surface hairy, adaxial surface glabrous or hairy (but not strigose). |
cauline; petiole 3–7 cm; leaflets 7–9, blades 20–50 × 3–5 mm, adaxial surface sparsely pubescent. |
loose, 5–16(–25) cm; flowers whorled or not. |
10–25 cm; flowers usually whorled, sometimes spirally arranged. |
(1–)4–25(–30) cm; bracts usually deciduous, 3–4 mm. |
5–8 cm; bracts deciduous, 8–10 mm. |
(1–)2–5(–7) mm. |
4–5 mm. |
5–15 mm; calyx 4–8 mm, bulge or spur 0–3 mm (may be variable on plant), abaxial lobe entire or 3-toothed, adaxial lobe entire or 2-toothed; corolla usually blue, sometimes purple, violet, pink, lilac, or white, banner patch yellowish to whitish, blue, brown, or absent, banner not much reflexed-recurved beyond midpoint, this less than 3 mm proximal to apex, banner glabrous or pubescent abaxially, wings glabrous, lower keel margins glabrous, upper margins ciliate. |
10–12 mm; calyx 6–10 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft; corolla blue, banner spot white, upper keel margins with few cilia near apex, banner as wide as long or wider. |
(1–)2–3 cm, hairy or silky. |
3–6 × 0.8–1 cm, densely pubescent. |
deciduous, petiolate. |
deciduous, petiolate. |
(2 or)3–5(or 6), tan, brown, or red. |
6–8. |
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Flowering spring. |
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Sandy or gravelly areas. |
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0–500 m. (0–1600 ft.) |
w North America
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CA; Mexico (Baja California) |
Varieties 14 (14 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus guadalupensis is known from San Clemente Island in California and Guadalupe Island in Mexico. It intergrades with L. nanus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| → 2 |
2. Flowers in profile appearing open, spur pronounced. | var. heteranthus |
2. Flowers in profile appearing closed; spur less pronounced. | → 3 |
3. Petioles of proximal cauline leaves 1.5–3 cm. | var. argophyllus |
3. Petioles of proximal cauline leaves 3–12 cm. | var. utahensis |
1. Calyx bulge 0–1 mm, but not elongated into a spur. | → 4 |
4. Leaflets oblanceolate, flat, green, surfaces glabrous or adaxially pubescent; plants of cool, moist mountain meadows, stream banks, lakeshores. | → 5 |
5. Corollas pale blue with brown banner patch; pedicels 1–2.5 mm. | var. fulvomaculatus |
5. Corollas usually blue with yellow banner spot or none; pedicels usually 3–4 mm. | → 6 |
6. Stems unbranched and racemes solitary, terminal. | var. rubricaulis |
6. Stems branched, giving rise to several racemes. | → 7 |
7. Corolla wings (7.5–)8–10 mm. | var. argentatus |
7. Corolla wings 5–7.5 mm. | var. parviflorus |
4. Leaflets oblanceolate or elliptic-oblanceolate, narrow and often folded, surfaces gray or silver-pubescent; plants of dry open areas, foothills to mountains. | → 8 |
8. Stem hairs descending in backward direction or widely spreading. | var. palmeri |
8. Stem hairs forwardly appressed. | → 9 |
9. Flowers large, (7–)8–15 mm. | → 10 |
10. Basal and cauline leaves present at flowering. | var. montigenus |
10. Basal leaves absent at flowering. | → 11 |
| var. argenteus |
| var. moabensis |
9. Flowers small, 5–7(–9) mm. | → 12 |
12. Banners densely pubescent. | → 40g |
40g. Lupinus argenteus var. holosericeus. | → 12 |
12. Banner glabrous or thinly strigulose abaxially. | → 13 |
13. Wings 5.5–7 mm; banner usually thinly strigulose abaxially; Kaibab Plateau, Arizona, Colorado, Nevada, New Mexico, Utah; elevation 2000–2800 m. | var. hillii |
13. Wings 5–6 mm; banner glabrous abaxially; Sierra Nevada, California, adjacent Nevada; elevation 1500–3500 m. | var. meionanthus |
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FNA vol. 11. |
FNA vol. 11. |
Fabaceae > subfam. Faboideae > Lupinus |
Fabaceae > subfam. Faboideae > Lupinus |
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. citrinus, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. guadalupensis, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. onustus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. shockleyi, L. sierrae-blancae, L. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus |
L. adsurgens, L. affinis, L. albicaulis, L. albifrons, L. andersonii, L. angustiflorus, L. antoninus, L. apertus, L. arboreus, L. arbustus, L. arcticus, L. argenteus, L. arizonicus, L. benthamii, L. bicolor, L. brevicaulis, L. breweri, L. cervinus, L. chamissonis, L. citrinus, L. concinnus, L. constancei, L. covillei, L. croceus, L. dalesiae, L. diffusus, L. duranii, L. elatus, L. elmeri, L. excubitus, L. flavoculatus, L. formosus, L. fulcratus, L. gracilentus, L. grayi, L. havardii, L. hirsutissimus, L. huachucanus, L. hyacinthinus, L. kingii, L. kuschei, L. lapidicola, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. longifolius, L. ludovicianus, L. luteolus, L. magnificus, L. malacophyllus, L. microcarpus, L. nanus, L. neomexicanus, L. nevadensis, L. nipomensis, L. nootkatensis, L. obtusilobus, L. odoratus, L. onustus, L. oreganus, L. pachylobus, L. padrecrowleyi, L. peirsonii, L. perennis, L. polyphyllus, L. pratensis, L. pusillus, L. rivularis, L. sabineanus, L. sericatus, L. sericeus, L. shockleyi, L. sierrae-blancae, L. sparsiflorus, L. spectabilis, L. stiversii, L. subcarnosus, L. succulentus, L. sulphureus, L. texensis, L. tidestromii, L. tracyi, L. truncatus, L. uncialis, L. villosus, L. westianus |
L. argenteus var. argentatus, L. argenteus var. argenteus, L. argenteus var. argophyllus, L. argenteus var. fulvomaculatus, L. argenteus var. heteranthus, L. argenteus var. hillii, L. argenteus var. meionanthus, L. argenteus var. moabensis, L. argenteus var. montigenus, L. argenteus var. palmeri, L. argenteus var. parviflorus, L. argenteus var. rubricaulis, L. argenteus var. utahensis |
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L. moranii |
Pursh: Fl. Amer. Sept. 2: 468. (1814) |
Greene: Bull. Calif. Acad. Sci. 1: 184. (1885) |
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