Amorpha ouachitensis

Amorpha ouachitensis is an uncommon North American species of flowering plant in the legume family known by the common names Ouachita leadplant, Ouachita Mountain leadplant, Ouachita false indigo, and Ouachita indigobush. It is native to Oklahoma and Arkansas in the United States.[2][3]

Amorpha ouachitensis
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Fabales
Family:
Fabaceae
Genus:
Amorpha
Species:
A. ouachitensis
Binomial name
Amorpha ouachitensis
Wilbur 1975

Amorpha ouachitensis is a shrub growing up to about 2 meters (80 inches) tall. The compound leaves are each made up of several oval leaflets. The inflorescence is made up of many flowers with purple petals and yellow anthers.[2][4]

Amorpha ouachitensis is native to the Ouachita Mountains. In Oklahoma it occurs in Le Flore, McCurtain, and Pushmataha Counties. In Arkansas the plant occurs in Conway, Garland, Logan, Montgomery, and Polk Counties.[3]

Amorpha ouachitensis grows in clearings and on rocky slopes, often next to streams or on floodplains. It is associated with other plants that include Calamovilfa arcuata, Streptanthus squamiformis, and Gaura demareei.[2]

The species is threatened by alteration of its habitat.[2][3]

References
  1. Contu, S. (2012). "Amorpha ouachitensis". The IUCN Red List of Threatened Species. IUCN. 208. e.T19891556A20005828. doi:10.2305/IUCN.UK.2012.RLTS.T19891556A20005828.en.
  2. Amorpha ouachitensis. Archived October 26, 2011, at the Wayback Machine Center for Plant Conservation.
  3. Amorpha ouachitensis. The Nature Conservancy.
  4. Wilbur, Robert Lynch 1975. Rhodora 77(811): 394–397
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