| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Euphorbiaceae | Argythamnia aphoroides | Hill Country Ditaxis | Dry sandy and rocky areas over limestone. | Endemic to c. TX. | |
| Euphorbiaceae | Argythamnia blodgettii | Blodgett’s Silverbush | Pine rocklands, rockland hammocks, coastal berms. | Endemic to s. FL. |  |
| Euphorbiaceae | Argythamnia humilis | Low Silverbush | Dry rocky or sandy prairies, other open areas; eastwards as a waif in disturbed ground. | Sw. KS and se. CO south to s. TX, w. TX, se. NM, and ne. Mexico (COA, NLE, TAM, ZAC). |  |
| Euphorbiaceae | Argythamnia mercurialina var. mercurialina | Tall Silverbush | Dry prairies over limestone or sand. | KS, se. CO, and ne. AZ south to TX and NM. |  |
| Euphorbiaceae | Argythamnia mercurialina var. pilosissima | Carrizo Silverbush | Sandy soils of oak woodlands and prairies. | E. TX south to s. TX, especially associated with the Carrizo Sand. | |
| Euphorbiaceae | Argythamnia serrata | Calcareous soils over limestone or caliche. | S. TX, c. TX, w. TX, s. NM, AZ, and s. CA south to se. Mexico. | ||
| Euphorbiaceae | Argythamnia simulans | Plateau Silverbush | Rocky and sandy soils over limestone. | Endemic to c. TX, mainly on the Edwards Plateau. |
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