Family: Fabaceae
field clover, low hop clover, pinnate hop clover
[Trifolium procumbens L.]
Etymology: Trifolium: from tres for three; folium for leaves
Plants: erect, annual, 4"-16" tall forb with many branches; stems fuzzy
Leaves: pinnately 3-parted, leaf and end leaflet stalked
Flowers: yellow, 5-parted, 1/8"-1/4" long, keel (top petal) grooved, calyx 2-lipped; inflorescence a dense, round to cylindrical head of 20-30 flowers; blooms May-Sept.
Habitat: disturbed sites
Conservation Status: Introduced - naturalized
Plants: erect, annual, 4"-16" tall forb with many branches; stems fuzzy
Leaves: pinnately 3-parted, leaf and end leaflet stalked
Flowers: yellow, 5-parted, 1/8"-1/4" long, keel (top petal) grooved, calyx 2-lipped; inflorescence a dense, round to cylindrical head of 20-30 flowers; blooms May-Sept.
Habitat: disturbed sites
Conservation Status: Introduced - naturalized
Gravel road shoulders, fields, railroad tracks, lawns, prairies, old quarries, rock outcrops, sandstone cliffs, openings in oak woods. First collected in 1859. Resembling T. aureum but with slightly smaller heads.
USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key