Common Early Spring Flowers Here are some of the most common early spring flowers that can be found in the Boise Foothills. Some of the earliest, like buttercups, can often be found in bloom in February. Sagebrush buttercup (Ranunculus glaberrimus var. glaberrimus)Orogenia, turkey-pea, Indian-potato (Lomatium linearifolium)Woolly-pod milkvetch (Astragalus purshii var. glareosus)bulbous woodlandstar or prairiestar (Lithophragma glabrum)dwarf, cushion, or low pussytoes (Antennaria dimorpha)narrowleaf or Great Basin biscuitroot (Lomatium simplex)pricklyleaf phlox (Phlox aculeata)cross-seed or slender popcorn-flower (Plagiobothrys tenellus)Aase’s onion (Allium aaseae)Slender phlox (Microsteris gracilis)spring whitlow-grass (Draba verna)desert alyssum or madwort (Alyssum desertorum)Stork- or cranesbill, filaree (Erodium cicutarium)Erodium cicutarium