The first two are anemones, and the third one looks like cow vetch, though it's a bit early for that, I would think. Can you get a picture that shows more of the plant.

duplicate

This post was edited by nhbabs on Thu, Mar 27, 14 at 7:10

Cow vetch is Vicia cracca, and Vicia villosa is a similar plant. Both are weeds, kind of viny with long clusters of flowers, sort of like tiny wisteria. I can't tell from your photo if there are other buds there as well.

this bud was the only bud on the plant. it was only a few inches tall

Vicia sativa. Few flowers in leaf axil vs. many flowers on long stalk in V. cracca or V. villosa..