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Lupinus arboreus

Lupinus arboreus Sims

 

Yellow Bush Lupine, Bush Lupine

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderFabalesLegumes (pea and bean families)
FamilyFabaceaeLegume family (peas and beans)
GenusLupinus“Wolf,” because of the mistaken belief that lupines ravage land they grow on; in fact, they contribute nutrients
Speciesarboreus“Tree-like”

About plant names...

Yellow bush lupines are native to western North America. Like other members of the extensive pea family, these lupines and their symbiotic bacteria trap atmospheric nitrogen, converting it to a form that provides the plant with necessary nutrients. Hence lupines can grow in areas, like sand dunes, that are too deficient in nitrogen to support other plants. A bright yellow dye can be extracted from the flowers. Outside of their native habitat, yellow bush lupines are now considered to be invasives.

Identification: These lupines can reach 5-6½' (1.5-2 m) in height, and about 4' (1.2 m) around, significantly larger than other lupine species. They produce deep roots which help to stabilize coastal sandy areas. Leaves are silky, dark green or gray-green, palm-like in appearance, with 5-12 leaflets on each leaf. Each leaflet is ¾-2" (2-6 cm) long. Flowers occur in spikes 6" (15 cm) long. They have a sweet scent. Usually yellow, they may be lilac or blue instead.

Online References:

Lupinus arboreus at the Lady Bird Johnson Wildflower Center

Lupinus arboreus on Plants for a Future, a resource and information centre for edible and otherwise useful plants

Lupinus arboreus at the Oregon Flora Image Project

Lupinus arboreus at the U.S. Department of Agriculture Forest Service

Lupinus arboreus on Wikipedia

Lupinus arboreus on CalPhotos

Lupinus arboreus description by Thomas H. Kent, last updated 15 Oct 2013.

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Lupinus arboreus (Yellow Bush Lupine, Bush Lupine)

6/15/2010 · Garden in the Woods, Framingham, MA
≈ 9 × 13" (21 × 32 cm)

Lupinus arboreus (Yellow Bush Lupine, Bush Lupine)

6/15/2010 · Garden in the Woods, Framingham, MA
≈ 11 × 7" (27 × 18 cm)

Lupinus arboreus (Yellow Bush Lupine, Bush Lupine)

8/17/2010 · By Jacquelyn Boyt

Lupinus arboreus (Yellow Bush Lupine, Bush Lupine)

6/15/2010 · Garden in the Woods, Framingham, MA
≈ 7 × 11" (18 × 27 cm)

Range:

About this map...