Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Lathyrus polyphyllus is a species of wild pea known by the common name leafy pea. It is native to the western United States from Washington to northern California, where it grows in forest and other habitat. This is a perennial herb with long leaves each made up of many pairs of oval-shaped leaflets a few centimeters long. The leaf also has tendrils which may be long, branched and coiled, or just a short bristle. The stipules are large as well, often over a centimeter wide. The plant produces an inflorescence of up to 12 pea flowers usually arranged in a line along one side of the stem. The flowers are up to 2 centimeters wide and are a variety of shades of purple. The fruit is a dehiscent legume pod containing peas.

Plant type

Perennial herb

Size

3 ft Tall

Form

Upright

Growth rate

Moderate

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Color

Red, Pink, Purple

Flowering season

Spring

Sun

Full Sun, Partial Shade

Soil description

Prefers sandy or loamy soils. Does not grow well in clay soils.

Plant communities

Coastal Prairie, Douglas-Fir Forest, North Coastal Coniferous Forest, Yellow Pine Forest

Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 21 likely

Confirmed Likely

Western Tailed-Blue

Cupido amyntula

Cerulean Looper Moth

Caenurgina caerulea

Chionodes braunella

Tobacco Budworm Moth

Chloridea virescens