| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Asteraceae | Grindelia adenodonta | Gland-teeth Gumweed | Prairies, streamside thickets. | Nc. TX south to se. and s. TX. |  |
| Asteraceae | Grindelia camporum | Great Valley Gumweed |  | ||
| Asteraceae | Grindelia lanceolata | Narrowleaf Gumweed | Limestone glades, limestone barrens, Black Belt chalk outcrops; also disturbed areas (roadsides, railroad beds, waste areas around wool-combing mills). | IL and MO south to TX; disjunct eastward in KY, TN, AL, and MS, and also a rare introduction farther east, such as in MD (Longbottom, Naczi, & Knapp 2016). |  |
| Asteraceae | Grindelia microcephala | Little-head Gumweed | Poorly drained clay areas. | S. TX south to TAM. | |
| Asteraceae | Grindelia oolepis | Plains Gumweed | "In tight, black clay-gumbo soil" (Correll & Johnston 1970). Also, apparently along roads and ditches and coastal prairies. "n early successional patches in coastal prairie on heavy clay soils, sometimes in disturbed habitats along railroads and vacant lots in urban areas; 'crawfish lands' " (Carr 2016). | Endemic to s. TX; expected in TAM. | |
| Asteraceae | Grindelia squarrosa | Curly-top Gumweed | Roadsides, other disturbed areas. | ON west to BC, south to TX, CA, and n. Mexico (CHH, COA, and NLE); also adventive widely in the e. United States. |  |
| Asteraceae | Grindelia texana | Texas Gumweed | Sc. OK south to c. TX; disjunct in COA. |
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