
| Also known as: | Palmate Hop Clover, Yellow Hop Clover |
|---|---|
| Genus: | Trifolium |
| Family: | Fabaceae (Pea) |
| Life cycle: | annual, biennial |
| Origin: | Europe |
| Habitat: | part shade, sun; fields, waste areas, roadsides |
| Bloom season: | May - September |
| Plant height: | 6 to 18 inches |
| County distribution (click map to enlarge): | ![]() |
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A single round to oval flower head on a ½ to 2-inch stalk arising from a leaf axil. Heads are ½ to ¾ inch long, densely packed with tiny yellow pea-shaped flowers that turn a creamy color then rusty brown before going to seed, giving plants a somewhat calico appearance. A plant has numerous flowers on branching stems.
Leaves are palmately compound in 3s, on a short stalk. Leaflets are ½ to ¾ inch long, finely toothed except near the base, rounded at the tip, tapering at the base, and all stalkless. A pair of leafy appendages (stipules) at the leaf joint are oval-lance shaped and about as long as the leaf stalk. Stems are smooth or with fine flattened hairs; growth is semi-erect with branches spreading laterally.
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Photos by K. Chayka taken at Wild River State Park, Chisago County, and in Cass County. Photos courtesy Peter M. Dziuk taken in St. Louis and Cass counties.
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