Greenish Pufflegs have a copper-green head, small whitish leg puffs, a white spot behind the eye, and have a blend of green, white, and gray scaling below. The leg puffs of this species are not as conspicuous as they are on other pufflegs. Greenish Pufflegs live in the interior and around the edges of humid wet forests. Most of their time is spent in the understory, but they ascend to the canopy when Inga trees are flowering. They keep feeding territories at flowers, but are not nearly as territorial as those pufflegs found in the Eriocnemis genus. Greenish Pufflegs most often forage by themselves at a small cluster of flowers in the forest interior. They do not typically hold on to flowers or hold their feathers in a V shape like Eriocnemis pufflegs do.