Lupinus tracyi |
Lupinus succulentus |
|
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Tracy's lupine |
arroyo lupine, hollowleaf annual lupine, succulent lupine |
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Habit | Herbs, perennial, 4–7 dm, glabrous, glaucous. | Herbs, annual, sometimes persisting more than one season, (1–)2–10 dm, fleshy, sparsely pubescent. |
Stems | solitary, erect, slender, usually unbranched. |
ascending or erect, branched or unbranched, usually succulent. |
Leaves | cauline; stipules 7–9 mm; petiole to 1 cm; leaflets 6 or 7, blades 10–40 × 4–10 mm, adaxial surface glabrous. |
cauline, may be crowded at base on new growth; petiole 6–15 cm; leaflets 7–9, blades 20–60 × 7–20 mm, adaxial surface glabrous. |
Racemes | 4–16 cm; flowers ± whorled or not. |
15–25 cm; flowers whorled. |
Peduncles | 2–6 cm; bracts deciduous, 8–10 mm. |
5–9 cm; bracts deciduous, 3–5 mm. |
Pedicels | 5–6 mm. |
3–7 mm. |
Flowers | 8–10(–12) mm; calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–5 mm, adaxial lobe 2-toothed, 3–8 mm; corolla whitish to dull blue (at least in bud), often fading to pale yellow, banner glabrous abaxially, keel glabrous, tip sometimes exserted. |
12–18 mm; calyx 4–7 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft; corolla usually blue-purple, rarely white, lavender, or pink, banner spot white, becoming magenta, upper wing margins ciliate near claw, lower and upper keel margins ciliate near claw. |
Legumes | 1.5–2.5 cm, white-hairy, dark when dry. |
3.5–5 cm, coarsely pubescent to tomentose. |
Cotyledons | deciduous, petiolate. |
deciduous, petiolate. |
Seeds | 3 or 4, 4–5 mm. |
6–9. |
2n | = 48. |
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Lupinus tracyi |
Lupinus succulentus |
|
Phenology | Flowering (May–)Jun–Jul. | Flowering late winter–late spring (Feb–May). |
Habitat | Dry, open montane forests. | Open or disturbed areas, roadbanks. |
Elevation | 800–2500 m. (2600–8200 ft.) | 0–1300 m. (0–4300 ft.) |
Distribution |
CA; OR
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AZ; CA; Mexico (Baja California, Baja California Sur)
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Discussion | Lupinus tracyi is known from the Klamath Ranges of northern California and adjacent areas in southern Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus succulentus occurs widely throughout California except in the Great Basin and desert regions and extends into northern Mexico; it is introduced in Arizona. It may occasionally persist more than one season in Californian North Coast locations. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. | FNA vol. 11. |
Parent taxa | Fabaceae > subfam. Faboideae > Lupinus | Fabaceae > subfam. Faboideae > Lupinus |
Sibling taxa | ||
Synonyms | L. succulentus var. brandegeei, L. succulentus var. layneae | |
Name authority | Eastwood: Leafl. W. Bot. 2: 268. (1940) | Douglas ex K. Koch: Wochenschr. Vereines Beford. Gartenbaues Konigl. Preuss. Staaten 4: 277. (1861) |
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