Austrian peaweed (Sphaerophysa salsula)
ODA rating: B
Other common names
Swainsonpea
Identification
Perennial; flowers from May to July. A creeping plant with compound leaves; numerous leaflets oval and covered in hair. Flowers 1/4 to 1 inch long and orange-red. Many seeds in bladder-like translucent pods.
Impacts
This plant was introduced from Asia and is commonly found in western states in irrigated fields as well as moist soil in waste places along roadsides and fences. It is a potential threat to grain and alfalfa growing areas. The seed is a contaminant in alfalfa seed production; it is the same size, shape and weight, making it impossible to separate.
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California Dept. of Food & Agriculture, Botany Laboratory
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T. Fuller, California Dept. of Food & Agriculture, Botany Laboratory
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California Dept. of Food & Agriculture, Botany Laboratory
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If images are downloaded and used from the ODA web site please be sure to credit the photographer.
Introduction
This plant was introduced from Asia and is commonly found in western states along roadsides and fences. It is a potential threat to grain and alfalfa growing areas; the seed is a contaminant in alfalfa seed which is the same size, shape and weight, making it impossible to seperate.
Distribution
The first recorded site in Oregon was 1936 in Umatilla County.
Map legend
Yellow: limited distribution
Red: abundant
Grey: not known to be present
Biological control
No approved biological control agent is available.
Informational links
WeedMapper
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