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Plumas lupine

Habit Plants perennial, 1–3 dm.
Stems

decumbent to ascending, not woody, glabrous to inconspicuously pubescent.

Leaves

mostly sub-basal;

leaflets 5–9, 15–50 × 7–19 mm, obovate to oblanceolate;

tips acute, apiculate;

surfaces abaxially strigose, adaxially glabrate;

petioles (4.5)7–16 cm.

Inflorescences

(6)7.1–19.6(36) cm;

peduncles (3.5)5–9.7 cm;

pedicels 4–8 mm.

Flowers

calyces 5–8 mm, not spurred;

lips subequal;

corollas 6–12 mm, blue to violet;

banners cup type; spot absent.

Fruits

20–50 mm, pilose.

Seeds

2–4.

Lupinus sparsiflorus

Lupinus onustus

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Pine forests, serpentine. Flowering Apr–Jul. 50–1600 m. Sisk. CA. Native.

This species may hybridize with other co-occurring perennial Lupinus species.

Source Flora of Oregon, volume 2, page 704
Paul Severns, Stephen Meyers, Christopher Royce
Sibling taxa
L. affinis, L. albicaulis, L. albifrons, L. arboreus, L. arbustus, L. arbustus x Lupinus oreganus, L. arbustus x Lupinus sericeus, L. argenteus, L. bicolor, L. brevicaulis, L. breweri, L. latifolius, L. lepidus, L. leucophyllus, L. leucophyllus x Lupinus sericeus, L. littoralis, L. luteolus, L. microcarpus, L. nevadensis, L. onustus, L. oreganus, L. polyphyllus, L. pusillus, L. rivularis, L. sabinianus, L. sericeus, L. sulphureus, L. tracyi, L. uncialis
L. affinis, L. albicaulis, L. albifrons, L. arboreus, L. arbustus, L. arbustus x Lupinus oreganus, L. arbustus x Lupinus sericeus, L. argenteus, L. bicolor, L. brevicaulis, L. breweri, L. latifolius, L. lepidus, L. leucophyllus, L. leucophyllus x Lupinus sericeus, L. littoralis, L. luteolus, L. microcarpus, L. nevadensis, L. oreganus, L. polyphyllus, L. pusillus, L. rivularis, L. sabinianus, L. sericeus, L. sulphureus, L. tracyi, L. uncialis
Synonyms Lupinus mucronulatus, Lupinus mucronulatus var. mucronulatus, Lupinus oreganus var. pusillulus
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