Desmodium glutinosum (Willd.) A.W. Wood - Pointed Tick Trefoil


 

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Desmodium glutinosum - (image 1 of 7)

 

Taxonomy

Family: Fabaceae

Habitat

Oak savannas and rich woods.

Associates

Acer saccharum, Agrimonia gryposepala, Amphicarpaea bracteata, Cornus racemosa, Corylus americana, Eupatorium rugosum, Fraxinus americana, Geranium maculata, Juglans nigra, Osmorhiza claytonii, Parthenocissus quinquefolia, Podophyllum peltatum, Polygonatum canaliculatum, Quercus alba, Quercus velutina, Sanicula gregaria, Smilacina racemosa, Solidago ulmifolia, Tilia americana, Vitis riparia.

Distribution

Nova Scotia west to Saskatchewan, south to FL and Mexico.

Morphology

Perennial with solitary stems to 40 cm high. Leaves compound, clustered at end of short stems; leaflets 3, conspicuously acuminate. Inflorescence from the end of leafy stems; flowers small; calyx campanulate, the lobes scarcely developed, less than half as long as the tube. Stipe of fruit more than twice the length of remnant calyx.

Notes

Flowers late June to early September

Wetland indicator: Upland

Sometimes common in disturbed woods, particularly near paths. The seed pods adhere quite readily to clothing. Desmodium nudiflorum (L.) DC. has flowering stems originating at the base of the plant and obtuse to short-acuminate leaflets.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY

 

Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.

 


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 Michael Hough 2004