E-Flora BC: Electronic Atlas of the Flora of British Columbia

Lathyrus sylvestris L.
narrow-leaved everlasting peavine (flat pea)
Fabaceae (Pea family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #1339)

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Distribution of Lathyrus sylvestris
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Species Information

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Perennial herb from a rhizome; stems climbing, 60-200 cm long, broadly winged, glabrous.
Alternate, pinnately compound with 2 leaflets; leaflets lanceolate to lance-elliptic, 5-12 cm long; tendrils well developed, branched; stipules 2-lobed, linear-lanceolate, 1-3 cm long.
Inflorescence a long-stalked, axillary cluster of 4 to 9 pea-like flowers; corollas muddy- to rose-pink, about 15 mm long, the banner-claw shorter than the blade; calyces 7-9 mm long, the teeth lance-triangular, shorter than the tube.
Pods, 4-6 cm long, 4-6 mm wide, glabrous; seeds 10 to 20.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry thickets, clearings, roadsides and waste places in the lowland zone; locally frequent garden escape in extreme SW BC and in SC BC; introduced from Eurasia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References