False Indigo

Amorpha fruticosa

Summary 6

Amorpha fruticosa is a species of flowering plant in the legume family Fabaceae, known by several common names, including desert false indigo, false indigo-bush, and bastard indigobush. It is native to North America.

Description 6

It grows as a glandular, thornless shrub which can reach 5 or 6 m (16 or 20 ft) in height and spread to twice that in width. It is somewhat variable in morphology. The leaves are made up of many hairy, oval-shaped, spine-tipped leaflets. The inflorescence is a spike-shaped raceme of many flowers, each with a single purple petal and ten protruding stamens with yellow anthers. The fruit is a legume pod containing one or two seeds.

Distribution and Habitat 7

It is found wild in most of the contiguous United States, southeastern Canada, and northern Mexico, but it is probably naturalized in the northeastern and northwestern portion of its current range.[citation needed] The species is also present as an introduced species in Europe, Asia, and other continents. It is often cultivated as an ornamental plant, and some wild populations may be descended from garden escapes.

Ecology/Wildlife Use 7

It is a larval host to the clouded sulphur, gray hairstreak, hoary edge, Io moth, marine blue, silver-spotted skipper, and southern dogface.

Read More 8

Sources and Credits

  1. AnRo0002, no known copyright restrictions (public domain), http://commons.wikimedia.org/wiki/File:20170717Amorpha_fruticosa4.jpg
  2. Jim Conrad, no known copyright restrictions (public domain), http://commons.wikimedia.org/wiki/File:Amorpha_fruticosa-flowers.jpg
  3. AnRo0002, no known copyright restrictions (public domain), http://commons.wikimedia.org/wiki/File:20200902Amorpha_fruticosa1.jpg
  4. AnRo0002, no known copyright restrictions (public domain), http://commons.wikimedia.org/wiki/File:20130702Amorpha_fruticosa1.jpg
  5. (c) Gmihail, some rights reserved (CC BY-SA), http://commons.wikimedia.org/wiki/File:Amorfr.jpg
  6. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Amorpha_fruticosa
  7. Adapted by Lauren LeCroy May from a work by (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Amorpha_fruticosa
  8. (c) Lauren LeCroy May, some rights reserved (CC BY-SA)

More Info

iNat Map

Form Shrub
Light Full sun, Part sun
Soil moisture Dry, Medium, Wet
Site Meadow, Savanna, Wetland
Bloom period April, May, June
Bloom color Orange, Purple/violet, Multi
Fruit/seeds/etc. Pods
Wildlife supported Insects - pollinators
Family Legumes