swainsonpea USDA PLANTS Symbol: SPSA3
U.S. Nativity: Exotic
Habit: Shrub or Subshrub Forbs/Herbs
Sphaerophysa salsula (Pallas) DC.
Jump to: Images | Distribution Maps | Sources
Taxonomic Rank: Magnoliopsida: Fabales: Fabaceae
Synonym(s): Austrian peaweed, red bladder-vetch, alkali swainsonpea
Appearance
Sphaerophysa salsula is a perennial herb that can grow to 5 ft. (1.5 m) in height.
Foliage
Leaves are compound with 15-23 leaflets. Leaflets are ovate, 0.2-0.75 in. (0.5-2 cm) long with short, white hairs on the lower surface.
Flowers
Flowering occurs from May to July, when red-orange flowers develop in the axils of the leaves, near the tip of the stem. Flowers are pea-like, stalked and 0.5 in. (12-14 mm) long.
Fruit
Fruits are ovoid, grooved on top, inflated at maturity and 0.4-1.4 in. (1.5-3.5 cm) long.
Ecological Threat
Sphaerophysa salsula is native to Asia and invades roadsides, right-of-ways, ditches, and other disturbed sites.
Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s);
Utah State University , , Bugwood.org
Additional Resolutions & Image Usage
Plant(s); in flower
Utah State University , , Bugwood.org
Additional Resolutions & Image Usage
Plant(s);
Utah State University , , Bugwood.org
Additional Resolutions & Image Usage
Flower(s);
Utah State University , , Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
Additional Resolutions & Image Usage
EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org 		 


State List
This map identifies those states that list this species on their invasive species list or law.

Invasive Listing Sources:
California Invasive Plant Council
Pacific Northwest Exotic Pest Plant Council, 1998
WeedUS - Database of Plants Invading Natural Areas in the United States