| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Papaveraceae | Argemone aenea | Dry plains, low hills, drainage areas, and roadsides. | S. Texas and w. Texas south to ne. Mexico. | ||
| Papaveraceae | Argemone albiflora var. albiflora | Carolina-poppy, White Prickly-poppy, Pavot épineux (frc) | Sandy roadsides and disturbed areas. | This species is apparently native to the southeastern United States, presumably including portions of our area, south to s. Florida, but the native range is unclear. The species’ weediness suggests that it may be merely adventive in portions of our area. |  (c) Hardin, J.W. |
| Papaveraceae | Argemone albiflora var. texana | White Prickly-poppy | Rocky or sandy areas, disturbed areas. | c. Oklahoma south to sw. Louisiana and s. Texas; populations in sw. Arkansas, n. Arkansas, and s. Missouri are sometimes considered introduced, but their status is uncertain. |  © Sonnia Hill |
| Papaveraceae | Argemone aurantiaca | Dry sandy or rocky prairies, fields, and pastures. | Endemic to Texas (mainly Edwards Plateau). | ||
| Papaveraceae | Argemone mexicana | Mexican-poppy, Mexican Prickly-poppy | Sandy or clayey roadsides and disturbed areas. | Native of peninsular Florida, West Indies, and Mexico and Central America (or perhaps a subset of that area). |  (c) Sorrie, Bruce A. - CC-BY |
| Papaveraceae | Argemone polyanthemos | White Prickly-poppy | Dry prairies, hills, fields, disturbed areas. | North Dakota, Saskatchewan, and Montana south to e. Texas, Arizona, and New Mexico. | |
| Papaveraceae | Argemone sanguinea | Red Prickly-poppy | Chaparral, roadsides, dry plains, fields, disturbed areas. | S. Texas and w. Texas, south to ne. Mexico. |  © Adam Black |
| Papaveraceae | Argemone squarrosa ssp. glabrata | Dry rocky or sandy prairies, hillsides, disturbed areas. | W. and c. Texas west to se. New Mexico. |