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

tree lupine, yellow bush lupine

Habit Diffusely branched, shrubby perennial 1-2 m. tall, from deep, heavy roots, silky to pubescent.
Leaves

Leaves numerous;

leaflets 5-11, oblanceolate, 3-6 cm. long, puberulent to silky.

Flowers

Inflorescence of numerous, loose racemes, 1-2.5 dm. long;

flowers 14-18 mm. long, yellow, the banner often somewhat purplish; pedicles 4-9 mm. long;

calyx puberulent, two-lipped;

banner well reflexed, glabrous;

keel sickle-shaped, with marginal hairs.

Fruits

Pods 4-6 cm. long and 1 cm. broad, hairy.

Lupinus arboreus

Flowering time May-September
Habitat Sandy soil at low elevations, often where disturbed.
Distribution
Occurring chiefly west of the Cascades crest in Washington in the lowlands and along the Pacific coast; British Columbia to California.
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from California, where native
Conservation status Not of concern
Sibling taxa
L. albicaulis, L. arbustus, L. argenteus, L. bicolor, L. latifolius, L. lepidus, L. leucophyllus, L. littoralis, L. microcarpus, L. nootkatensis, L. oreganus, L. pachylobus, L. polyphyllus, L. pusillus, L. rivularis, L. sabinianus, L. saxosus, L. sericeus, L. sulphureus
Web links