Psoralea

A genus of plants in the legume family Fabaceae; may cause primary photosensitization. Includes P. argophylla, P. cinerea, P. patens, P. tenuiflora. Called also scurf pea. See also psoralen.

The noun has one meaning:

Meaning #1: widely distributed genus of herbs or shrubs with glandular compound leaves and spicate or racemose purple or white flowers
  Synonym: genus Psoralea

Psoralea
Psoralea lanceolata
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Fabales Family: Fabaceae Subfamily: Faboideae Tribe: Psoraleeae Genus: Psoralea L.
Species
Psoralea aculeata Psoralea adscendens Psoralea affinis Psoralea alata Psoralea arborea Psoralea archeri Psoralea argophylla Psoralea aromatica Psoralea asarina Psoralea australasica Psoralea axillaris Psoralea badocana Psoralea balsamica Psoralea californica Psoralea canescens Psoralea castorea Psoralea cinerea Psoralea clementii Psoralea connixa Psoralea corylifolia Psoralea cuneata Psoralea cuspidata (Pediomelum cuspidatum) Psoralea cyphocalyx Psoralea esculenta Psoralea hypogaea (Pediomelum hypogaeum) Psoralea pinnata
Ref: ILDIS Version 6.05

Psoralea is a genus in the legume family (Fabaceae). Although most species are poisonous, the starchy roots of P. esculenta (breadroot, tipsin, or prairie turnip) and P. hypogaea are edible. A few species form tumbleweeds.

Common names include tumble-weed (P lanceolata),^[1] and white tumbleweed.^[2]

References

1. ^ Nathaniel Lord Britton, Addison Brown (1913). An Illustrated Flora of the Northern United States, Canada and the British Possessions: From Newfoundland to the Parallel of the Southern Boundary of Virginia, and from the Atlantic Ocean Westward to the 102d Meridian. 2. C. Scribner's sons. http://books.google.com/books?id=RZUCAAAAYAAJ.  page 361
2. ^ Charles E. Ressey (1902). Robert W. Furnas. ed. "Report of the Botanist: Preliminary account of the plants of Nebraska which are reputed to be poisonous, or are suspected of being so". Annual Report, Nebraska State Board of Agriculture, for the year 1901 (Nebraska State Board of Agriculture): 95-129. , page 119

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