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Desmodium strictum (Pursh) DC.

Meibomia stricta (Pursh) Kuntze

Pine-barren tick-trefoil

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”
SpeciesstrictumUpright

About plant names...

This rare species is native to North America. It prefers sandhill woodlands, dune woodlands, sandy clearings, and roadsides.

Plants: Stems are erect, in groups of one to a few, with minute hairs, 20-47" (50-120 cm) in height.

Leaves: Thick, linear, 6-10 times longer than they are wide, on long stems (petioles). Terminal leaflets are 1-2" (3-6 cm) × ⅛-⅜" (3-10 mm).

Flowers: Flowers are purple or pink, on panicles 8-20" (20-50 cm) long, with flowers on uplifting tiny stems (petioles) ⅛-⅜" (6-11 mm) long.

Fruits: Fruits somewhat resemble peapods. Technically they are loments, seedpods that break apart at their constric­tions but do not open to release their seeds.

Online References:

Desmodium strictum on Discover Life

Desmodium strictum on SEINet—the Southwest Environmental Information Network

References:

Weakley, Alan S.; Ludwig, J. Christopher; Townsend, John F.; Crowder, Bland (Ed.), Flora of Virginia, Botanical Research Institute of Texas Press, 2013, p. 577

Desmodium strictum (pine-barren tick-trefoil)

8/30/2016 · MA

Desmodium strictum (pine-barren tick-trefoil)

7/30/2017 · Jason”s Cutoff and Nearby Trails, Beaver Brook Conservation Area, Hollis, NH
≈ 4½ × 4" (12 × 10 cm) ID is uncertain

Desmodium strictum (pine-barren tick-trefoil)

8/30/2016 · MA

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

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Desmodium strictum (pine-barren tick-trefoil)

8/30/2016 · MA

Desmodium strictum (pine-barren tick-trefoil)

8/30/2016 · MA

Desmodium strictum (pine-barren tick-trefoil)

7/30/2017 · Jason”s Cutoff and Nearby Trails, Beaver Brook Conservation Area, Hollis, NH
≈ 4½ × 4" (11 × 10 cm) ID is uncertain

Desmodium strictum (pine-barren tick-trefoil)

8/30/2016 · MA

Range:

About this map...