Mojave Indigo Bush

Psorothamnus arborescens

Mojave Indigo Bush

Color: Blue to purple

Common name: Mojave Indigo Bush

Latin name: Psorothamnus arborescens


Height: 3 feet

Description: Psorothamnus arborescens is a shrub growing no more than a meter tall, its highly branching stems sometimes with thorns. It is without hairs to minutely hairy. The inflorescence is a long raceme of many flowers with reddish green calyces of sepals and bright purple pealike corollas up to a centimeter long. The fruit is a glandular legume pod up to a centimeter long containing one seed.

There are several varieties of this species which are generally similar in appearance.

Leaf: The leaves are each made up of a few pairs of green linear to oval leaflets up to a centimeter in length.

Range: Mojave Desert, San Bernardino Mountains, East of Sierra Nevada

Habitat: Desert mtns, slopes, canyons, flats, washes

Elevation: 100–1900 m.

Flowering time: Apr-May

Notes: This photo was taken on April 12, 2008 in Grapevine Canyon, Western Mojave Desert. Psorothamnus arborescens, a dicot, is a shrub that is native to California. Distribution outside California: s Nevada, Mexico.

Mojave Indigo Bush

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