// SPECIES PROFILE · VINE · NATIVE

Manystem pea

Lathyrus polymorphus ssp. polymorphus

Manystem pea (Lathyrus polymorphus ssp. polymorphus) is a vine in the — family. Native range includes KS, OK. Hardy in zones 2a–10a. Mature size 1"–16". Blooms May–Jul.

// QUICK FACTS

Family: —
Group: vine
Native range: Native to CO, KS, NE, NM, OK, SD, TX, WY
USDA hardiness: Zones 2a–10a
Mature size: 1"–16"
Sun: —
Water: —
Bloom: May–Jul
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Manystem pea (Lathyrus polymorphus ssp. polymorphus) — *Lathyrus polymorphus ssp. polymorphus* — Manystem pea. Photo via iNaturalist — (c) Colin Croft, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Manystem pea (Lathyrus polymorphus ssp. polymorphus) is a vine in the — family. Native range includes KS, OK. Hardy in zones 2a–10a. Mature size 1"–16". Blooms May–Jul.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, manystem pea pairs naturally with: Macoun's false bindweed (Calystegia macounii), Hedge false bindweed (Calystegia sepium), Scaldweed (Cuscuta gronovii), Scaldweed (Cuscuta gronovii var. gronovii).