| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Urochloa adspersa | Moist, sunny, disturbed areas, coastal strands, rockland hammock edges, shell middens. | Native of s. FL, the West Indies, Mexico (YUC), and Argentina. Reported as adventive from AL, FL peninsula and Panhandle (FNA), and chrome ore piles in Newport News, VA (Reed 1964) |  | |
| Poaceae | Urochloa arizonica | Arizona Signalgrass | Disturbed areas. | TX coast, w. TX, s. NM, AZ, and s. CA south through Mexico. | |
| Poaceae | Urochloa arrecta | African Signalgrass, Tannergrass | Planted as forage and established and escaped into disturbed marshes, ditches, and wet pastures. | Native of Africa. | |
| Poaceae | Urochloa brizantha | Palisade Signalgrass | Pastures, disturbed areas. | Native of tropical Africa. | |
| Poaceae | Urochloa ciliatissima | Fringed Signalgrass | Sandy prairies, other rocky or sandy open areas. | Nw. AR and OK south to s. TX, se. NM, and n. Mexico (COA, NLE, TAM, VER). | |
| Poaceae | Urochloa deflexa | Guinea Millet | Disturbed areas. | Native of Africa. | |
| Poaceae | Urochloa fusca var. reticulata | Browntop Signalgrass | Disturbed areas. | OK and AZ south through TX, south through Mexico to tropical America; eastwards as an adventive. |  |
| Poaceae | Urochloa humidicola | Koronivia Grass, Creeping Signal-grass, Humidicola | Cultivated, escaped locally. | Native of tropical Africa. | |
| Poaceae | Urochloa mosambicensis | Mozambique Liverseed-grass | Disturbed areas. | Native of Africa. | |
| Poaceae | Urochloa mutica | Para-grass | Wet disturbed areas, margin of ponds. | Native of Africa. |  |
| Poaceae | Urochloa oligobrachiata | Weak Signal Grass | "Roadside muck". | Native of w. Africa. | |
| Poaceae | Urochloa panicoides | Liverseed Grass | Planted as a forage grass. | Native of s. Africa. | |
| Poaceae | Urochloa piligera | Hairy Signalgrass | Roadsides. | Native of Australia. Reported for Escambia County in the FL Panhandle (Kunzer et al. 2009) and Lee County, Georgia (Zomlefer et al. 2018). Reported for Lexington and Richland counties, SC (Bradley et al. [in prep.]). |  |
| Poaceae | Urochloa plantaginea | Alexander Grass | Disturbed areas. | Native of the Neotropics. Reported for s. GA (Jones & Coile 1988), as Brachiaria plantaginea, and for Escambia County in the FL Panhandle (Kunzer et al. 2009). |  |
| Poaceae | Urochloa platyphylla | Broadleaf Signal-grass | Edges of agricultural fields, other disturbed wet or seasonally moist areas. | Apparently native of South America. E. NC south to FL, west to TX, north in the interior to AR, OK, and se. MO; also in MD and DE (Longbottom, Naczi, & Knapp 2016; Terrell & Reveal 1996). |  |
| Poaceae | Urochloa pubigera | On ballast, presumably only historical. | |||
| Poaceae | Urochloa ramosa | Browntop Millet, Dixie Signalgrass | Disturbed areas. | Native of tropical Africa and Asia. This species has been widely planted for wildlife food and erosion control in the southeastern states. |  |
| Poaceae | Urochloa reptans | Sprawling Signalgrass | Disturbed areas. | Native of the Neotropics and Paleotropics. |  |
| Poaceae | Urochloa subquadripara | Small-flowered Alexander Grass, Tropical Liverseed Grass | Disturbed upland areas. | Native of tropical and subtropical Asia. |  |
| Poaceae | Urochloa texana | Texas Millet, Texas Signalgrass | Edges of agricultural fields, other disturbed areas, gardens. | Native of TX. OK, NM, and AZ south to TX and Mexico. First reported for SC by Hill & Horn (1997). Apparently spreading in eastern North America. Reported as "new to DE and spreading in MD" by Longbottom, Naczi, & Knapp (2016). |  |
| Poaceae | Urochloa villosa | Hairy Signalgrass | Reported from chrome ore piles in Newport News, VA (Reed 1964). | Native of tropical Asia and Africa. |
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