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Matted lupine, showy Brewer's lupine

Brewer's lupine, Matted lupine

Habit Herbs or subshrubs with caudex above ground, matted. Herbs or subshrubs, perennial, to 2 dm, matted or tufted, silvery-silky.
Stems

prostrate, branched, base ± woody.

Leaves

cauline, clustered near base;

stipules 2–5 mm;

petiole 1–5(–6) cm;

leaflets 5–10, blades 3–20 × 2–6 mm, adaxial surface pubescent.

Leaflet

blades 6–11 mm.

Racemes

2–10 cm.

dense, 1–10 cm;

flowers whorled.

Peduncles

2–8 cm.

1–3(–8) cm;

bracts deciduous, 3–5 mm.

Pedicels

1–3(–4) mm.

Flowers

(6–)9–11 mm;

banner ± silky abaxially, keel strongly ciliate.

4–11 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 4–6 mm, adaxial lobe 2-toothed, 4–7 mm;

corolla blue to violet, banner patch white or yellow, banner glabrous or densely hairy abaxially, keel straight, abaxial margins glabrous, adaxial margin glabrous or ciliate.

Legumes

1–2 cm, silky.

Cotyledons

deciduous, petiolate.

Seeds

3 or 4, mottled tan, brown, 3–4 mm.

Lupinus breweri var. grandiflorus

Lupinus breweri

Phenology Flowering Jun–Aug.
Habitat Volcanic sand.
Elevation 2000–3500 m. (6600–11500 ft.)
Distribution
from FNA
CA
[BONAP county map]
from USDA
w United States
[WildflowerSearch map]
[BONAP county map]
Discussion

Variety grandiflorus is known from throughout the Sierra Nevada and in the San Bernardino and White mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 3 (3 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Banner silky abaxially, keel strongly ciliate.
var. grandiflorus
1. Banner glabrous abaxially, keel glabrous.
→ 2
2. Flowers 6–9 mm; leaflet blades 6–20 mm.
var. breweri
2. Flowers 4–6(–7) mm; leaflet blades 3–5 mm.
var. bryoides
Source FNA vol. 11. FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Lupinus > Lupinus breweri Fabaceae > subfam. Faboideae > Lupinus
Sibling taxa
L. breweri var. breweri, L. breweri var. bryoides
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. 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
Subordinate taxa
L. breweri var. breweri, L. breweri var. bryoides, L. breweri var. grandiflorus
Synonyms L. breweri var. clokeyanus, L. campbelliae, L. campbelliae var. bernardinus, L. monensis, L. tegeticulatus var. grandiflorus
Name authority C. P. Smith in W. L. Jepson: Man. Fl. Pl. Calif., 526. (1925) A. Gray: Proc. Amer. Acad. Arts 7: 334. (1868)
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