Lathyrus Species, Cream Pea Vine, Yellow Vetchling

This plant is native in zone 3/4 southern Manitoba. On the plus side, it is hardy and shade tolerant, is host to a number of butterfly sp...Read Moreecies, and fixes its own nitrogen. On the minus side, it spreads by fine stolons and will grow up through other plants, so it needs to be sited accordingly. After only two years, I have not seen flowers or final height, so can't comment on that.

Creamy pea vine is endangered or threatened in several states in the US. It is a slender, climbing perennial from up to 3ft tall. Has 5...Read More-10 pea-like creamy-white flowers in clusters in early summer. Often found in open woods.
Although not poisonous care should be exercised as some plants from this genus cause a type of poisoning called lathyrism, which results from livestock eating too much vetchling seed over long periods of time.