Mecardonia procumbens (Miller) Small

Weakley, Alan S., LeBlond, Richard J., McMillan, Patrick D., Sorrie, Bruce A., Poindexter, Derick B., Fuller, J. Brandon, Bridges, Edwin L., Budach, Brett J., Carr, Susan C., Crowl, Andrew A., Manos, Paul S., Fritsch, Peter W., Orzell, Steve L., Wipff, Joseph K., Messec, Lilly Anderson, Dellinger, Bob, Ungberg, Eric A., Yawn, Noah D., Cressler, Alan M., Oberholster, Chris, Barger, T. Wayne, Carter, J. Richard, Floden, Aaron J., Knapp, Wesley M., Copen, Iris, Jenkins, Amy M., Hughes, Ethan L., Annis, Jenna, Baker, Wilson & Mears, Randy L., 2024, Studies In The Vascular Flora Of The Southeastern United States. X, Journal of the Botanical Research Institute of Texas 18 (1), pp. 17-77 : 50-52

publication ID	https://doi.org/10.17348/jbrit.v18.i1.1338
persistent identifier	https://treatment.plazi.org/id/0386DE00-FF83-A028-FF99-2CD7A57DFE73
treatment provided by	Felipe
scientific name	Mecardonia procumbens (Miller) Small
status

Treatment

Mecardonia procumbens (Miller) Small View in CoL documented for Georgia Primary authors: J. Richard Carter and Randy L. Mears

This widely ranging tropical American species is known from the southwestern United States and eastward in Arkansas, Louisiana, Mississippi, Alabama, Florida, and South Carolina ( Godfrey & Wooten 1981; Ahedor 2019; Weakley & Southeastern Flora Team 2023). It inhabits moist soils and wetland sites such as ditches, ponds, streams, and moist shores ( Small 1933; Godfrey & Wooten 1981; Weakley & Southeastern Flora Team 2023). Although cited for Georgia by Ahedor (2019), Weakley and Southeastern Flora Team (2023) do not include Georgia in the distribution of this species, nor could we find any vouchers of it for the state through SERNEC Data Portal (2024). Thus, we report the following record of Mecardonia procumbens from Georgia, substantiated by a voucher.

This low-growing prostrate-ascending herb with small yellow flowers was locally common and weedy in moist soil along a shallow ditch, where it was associated with Typha latifolia L., Eleocharis quadrangulata (Michx.) Roem. & Schult. , E. montevidensis Kunth , Phyla nodiflora (L.) Greene, Ptilimnium capillaceum (Michx.) Raf , Rhynchospora colorata (L.) H. Pfeiff., R. macrostachya Torr. ex A. Gray , Juncus effusus L., J. dichotomus Elliott , Pontederia cordata Lour. , Hydrocotyle , and Leersia hexandra Sw.

Voucher specimen: U.S.A. Georgia. Camden Co.: 30.91191°N, 81.71237°W; 0.52 mi S GoogleMaps jct. Hwy US 17 and Groover Rd,along west side of Hwy. US 17 , edge of shallow ditch with standing water, plants locally common, 27 Jun 2021, R . Carter 25545 with Randy Mears ( VSC) .