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Desmodium rotundifolium DC.

Desmodium michauxii (Vail) Daniels

Meibomia michauxii Vail

Meibomia rotundifolia (DC.) Kuntze

Prostrate ticktrefoil, round-leaved trailing ticktrefoil, dollar leaf

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderFabalesLegumes (pea and bean families)
FamilyFabaceaeLegume family (peas and beans)
GenusDesmodiumFromthe Greek desmos, “bond, fetter, halter, or chain”
SpeciesrotundifoliumFrom Latinrotundus, “circular,round, or spherical;” and folium, “leaf”

About plant names...

Prostrate ticktrefoil is a North American native.

Identification: Plants are prostrate, with green or reddish stems, clambering over the ground up to 3' (1 m). Leaves are alternate, in clusters of three, on stems up to ⅜" (1 cm). The main leaflet is up to 1¾" (5 cm), almost round. The two side leaflets are about two-thirds the size of the main one, and ovate. The rounded leaf triplets and trailing stems are distinctive. Pinkish-purple flowers, pea-like in shape, are about ⅜" (1 cm) in size. They are bilaterally symmetrical, appearing from July to September. Seedpods resemble small pea pods with small hooked hairs and 3-6 seeds.

Online References:

Desmodium rotundifolium on Missouriplants.com

Desmodium rotundifolium on nametheplant.net (Native & Naturalized Plants of the Carolinas and Georgia)

Desmodium rotundifolium on nametheplant.net (Native & Naturalized Plants of the Carolinas and Georgia)

Desmodium rotundifolium on the New England Wildflower Society’s GoBotany site

Desmodium rotundifolium (prostrate ticktrefoil, round-leaved trailing ticktrefoil, dollar leaf)

8/21/2013 · Estuary Trail, Shipley Swamp, Westford, Mass­a­chu­setts
≈ 6 × 6" (16 × 14 cm)

Desmodium rotundifolium description by Thomas H. Kent, last updated 25 May 2020.

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Desmodium rotundifolium (prostrate ticktrefoil, round-leaved trailing ticktrefoil, dollar leaf)

8/21/2013 · Estuary Trail, Shipley Swamp, Westford, Mass­a­chu­setts
≈ 6 × 5" (15 × 13 cm)

Desmodium rotundifolium (prostrate ticktrefoil, round-leaved trailing ticktrefoil, dollar leaf)

8/21/2013 · Estuary Trail, Shipley Swamp, Westford, Mass­a­chu­setts
≈ 11 × 7" (28 × 18 cm)

Desmodium rotundifolium (prostrate ticktrefoil, round-leaved trailing ticktrefoil, dollar leaf)

8/21/2013 · Estuary Trail, Shipley Swamp, Westford, Mass­a­chu­setts
≈ 8 × 6" (20 × 14 cm)

Range:

About this map...