The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Lassics lupine, lassicus lupine, The Lassics lupine

Pursh's silky lupine, silky lupine

Habit Herbs, perennial, less than 1.5 dm, matted, long-shaggy-hairy. Herbs, perennial, (2–)4–14 dm, silky-strigose to finely hirsute (with both short and long hairs).
Stems

± prostrate, branched.

erect, ascending, or decumbent, branched distally.

Leaves

cauline, clustered near base;

stipules less than 6 mm;

petiole 6–8(–14) cm;

leaflets 6 or 7, blades 10–20 × 8–10 mm, adaxial surface pubescent.

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.

Racemes

dense, 3–5 cm, usually exceeding leaves;

flowers whorled.

12–25(–42) cm;

flowers whorled or spirally arranged.

Peduncles

1.5–4 cm;

bracts deciduous, 2.5–3 mm.

2–4 cm;

bracts subdeciduous, 5–8 mm.

Pedicels

1–4 mm.

2–5(–6) mm.

Flowers

8–12 mm, in 5–12 whorls;

calyx bulge or spur 0–1 mm, abaxial lobe entire, 4–5 mm, adaxial lobe notched, 4–5 mm;

corolla pink, banner patch light yellow, keel dark rose, white at claw, banner glabrous abaxially, strongly reflexed, lower keel margins glabrous, adaxial margin ciliate.

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.

Legumes

1.5–2.5 cm, shaggy.

2–3.7 cm, densely pilosulous.

Cotyledons

deciduous, petiolate.

deciduous, petiolate.

Seeds

3–5, tan.

(2 or)3–5(–7).

Lupinus constancei

Lupinus sericeus

Phenology Flowering Jul. Flowering May–Aug.
Habitat Serpentine barrens in openings of lower montane conifer forests. Meadows, dry banks, bunch­grass prairies, sagebrush scrub, openings in conifer forests.
Elevation 1500–2000 m. (4900–6600 ft.) 200–3100 m. (700–10200 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
AZ; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Lupinus constancei is known from only two populations in the Lassics Range (Inner North Coast Range) in southeastern Humboldt and northwestern Trinity counties.

(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.)

Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus Fabaceae > subfam. Faboideae > Lupinus
Sibling taxa
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. 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. 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. 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
Synonyms L. lepidus var. constancei 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 T. W. Nelson & J. P. Nelson: Brittonia 35: 180, fig. 1. (1983) Pursh: Fl. Amer. Sept. 2: 468. (1813)
Web links