Earth-nut Peavine - Lathyrus tuberosus
Other Names:
Earth-nut Vetchling, Tuberous Vetchling, Tuberous Pea
Tuberous and rhizomatous. Stems ascending, 20–60 cm. Leaves with 2 oblanceolate leaflets, 2–4 cm long with a mucronate tip; rachis prolonged into a tendril; stipules linear, ca. 1 cm long. Flowers red; calyx 5–7 mm long; sepals subequal; banner 12–16 mm. Legume 2–4 cm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
POLLINATORS The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
Bombus appositus,
Bombus fervidus,
Bombus flavifrons,
Bombus sitkensis, and
Bombus occidentalis (Thorp et al. 1983, Colla and Dumesh 2010, Koch et al. 2012).