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Texas bluebonnet, Texas lupine
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river-bank lupine, stream bank lupine
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| Herbs, annual, 1.5–4 dm, pubescent, hair appressed or ascending. |
Herbs, perennial, 3.5–10 dm, green, ± glabrous. |
ascending or erect, branched. |
decumbent, ascending, or erect, branched, dark brown to red, usually hollow. |
cauline, crowded near base; petiole 2–6 cm; leaflets 5 or 6(or 7), blades 10–25 × 6–12 mm, adaxial surface glabrous. |
cauline; stipules 7–15 mm; petiole 3–5 cm; leaflets 5–9, blades 20–40 × 4–9 mm, adaxial surface glabrous. |
2–12 cm; flowers spirally arranged. |
open, 15–50 cm; flowers ± whorled or not. |
3–6 cm; bracts deciduous, 2–3 mm. |
3–15 cm; bracts deciduous, 8–10 mm. |
4–6 mm. |
5–10 mm. |
10–13 mm; calyx 6–8 mm, abaxial lobe entire or cleft, 4–5 mm, adaxial lobe cleft, 2–3 mm, hairs silvery; corolla usually dark blue, rarely white, banner spot bright white, keel glabrous, wings flat. |
12–16 mm; calyx bulge or spur 0–1 mm, abaxial lobe entire or ± 3-toothed, 7–9 mm, adaxial lobe 2-toothed, 7–8 mm; corolla violet, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate claw to tip. |
2.5–3.5 cm, white silky-villous. |
dark, 3–7 cm, sparsely hairy. |
deciduous, petiolate. |
deciduous, petiolate. |
4 or 5. |
7 or 8, mottled brown with black line, 3–4 mm. |
= 36. |
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| Flowering spring–summer. |
Flowering Mar–Jun. |
| Prairies, open fields, pastures, roadsides. |
Gravelly prairies, open woods, riverbanks. |
| 0–600 m. (0–2000 ft.) |
0–500 m. (0–1600 ft.) |
|
FL; LA; OK; TX; Mexico (Coahuila, Nuevo Léon, Tamaulipas)
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CA; OR; WA; BC
|
Lupinus texensis is introduced in Florida in Alachua and Pinellas counties. In Texas, it is widespread in the southern two-thirds of the state. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Lupinus rivularis ranges from Mendocino County in California northward through Oregon and Washington. It has been confirmed in British Columbia (where it is of conservation concern) in the extreme southwestern corner of the province, with a single population on southern Vancouver Island and five populations in the lower Fraser Valley. Lupinus rivularis is distinguished by its absence of wood, banners that are glabrous abaxially, ciliate keels, glabrous leaf surfaces, and violet flowers. It grades into blue-flowered L. arboreus but blooms earlier (late winter, spring) and is not sweet-smelling. L. L. Phillips (1955) considered L. rivularis as synonymous with L. albicaulis. Lupinus rivularis is widely planted for erosion control in western Oregon; it is of conservation concern in Canada. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| 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. 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. 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. 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. 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. 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. amphibius, L. lignipes |
| Hooker: Bot. Mag. 63: plate 3492. (1836) |
Douglas ex Lindley: Edwards’s Bot. Reg. 19: plate 1595. (1833) |
| |
LA Plants
BC, 
CA, 
OR, 
WA
Flora NW, 
PNW Herbaria, 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database
