Fabaceae: Pea Family — Lathyrus (Pea)
The pea family has 5-petaled flowers, consisting of a wide upper banner petal, two wing petals, plus two lower petals which are fused to form a boat-shaped keel. Many genera have flowers in heads or spikes, comprising many individual flowers. Examples are lupines and clovers. The seed pod is generally a “legume”. This is a long, flattish pod, swollen by the seeds, and splitting lengthwise along both the top and bottom.