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Sessile Tick-Trefoil (Desmodium sessilifolium) |
Color Photograph: Larry Allain, U.S. Geological Survey
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Desmodium strictum The leaflets of Stiff Tick-Trefoil are even narrower, have a distinct petiole, and are not sessile to the stem.
Desmodium paniculatum The petiole of Panicled Tick-Trefoil is even longer and the flowers are on a panicle (branched flower stalk), not a raceme (unbranched) Sessile Tick-Trefoil (Desmodium sessilifolium) Identification: Plant erect. Flowers pink to lavender, pealike. Lower petals elongate and projecting outward. Seedpods jointed with 1 to 4 segments. Flowers sparsely placed on a long flower stalk arising from a leaf axil. Stem hairy. Leaves divided into 3 leaflets and petiole extremely short, hearly sessile with the stem. Each leaflet elongate, narrow. Plant 2 to 4 feet in height. Distribution: Iowa and Michigan in the west to Ontario and Massachusetts in the east, southward to Florida and Texas. Habitat: Sessile Tick-Trefoil is found on a variety of dry soils. Flowering period: July to August. |
Sessile Tick-Trefoil (Desmodium sessilifolium)
Similar Species: The narrow leaflets are nearly distinctive. Stiff Tick-Trefoil (Desmodium strictum) Panicled Tick-Trefoil (Desmodium paniculatum)
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Similar Species |
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