| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Asteraceae | Senecio ampullaceus | Texas Groundsel | Pastures, fields, other open, sandy or disturbed areas. | Sw. AR and se. OK south to ne. LA and s. TX. |  |
| Asteraceae | Senecio brasiliensis var. tripartitus | Hempleaf Ragwort | Disturbed areas (on ballast); rare (not collected since 1894, Pensacola, Escambia County, FL). | Native of South America. | |
| Asteraceae | Senecio quaylei | Quayle's Ragwort, Quayle's Butterweed | Disturbed area (roadside ditch). | Apparently endemic to Parker County, TX. |  |
| Asteraceae | Senecio riddellii | Riddell's Ragwort | Floodplains, other seasonally ponded areas. | SD and WY south to se. TX, NM, AZ, and n. Mexico (COA, NLE, TAM). |  |
| Asteraceae | Senecio sylvaticus | Woodland Ragwort | Disturbed areas. | Native of Europe. | |
| Asteraceae | Senecio viscosus | Sticky Groundsel | Disturbed areas. | Native of Europe. |  |
| Asteraceae | Senecio vulgaris | Groundsel | Roadsides, fields, disturbed areas. | Native of Eurasia. |  |
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