naked-flowered tick-trefoil

Hylodesmum nudiflorum is present across the eastern United States including AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV, as well as Canadian provinces Ontario and Quebec. As for its conservation status, the species is listed as secure in Indiana, Kentucky, New York, North Carolina, Pennsylvania, South Carolina, Virginia, and West Virginia; apparently secure in Ontario, Delaware, New Jersey, and Vermont; vulnerable in Iowa; imperiled in Quebec and Minnesota; and critically imperiled in Kansas. The rest of the areas aren't researched enough for determining conservation status. In less secure areas like Minnesota, the species is increasingly threatened due to loss of habitat and invasive species. Conservation efforts are put towards mainly habitat, so active management is not required.

== References ==

H. nudiflorum flowers have a sweet fragrance that attracts bees and other nectarivorous insects. Bumblebees serve the plant as its main pollinator, as outcrossing is the predominant form of reproduction and asexual reproduction doesn't occur. Dispersal of seeds is mainly attributed to the hooked hairs that attach to mammals with fur like deer. The plants pollen grains are "tricolporate, medium in size, (28.1–)30.2(–33.1) μm in polar axis, (25.0–) 27.3(–29.7) μm in equatorial diameter, P/E = (1.02–)1.11(–1.21), prolate spheroidal or subprolate in shape, elliptic in equatorial view, and almost circular in polar view."