| Classification | Euphorbiaceae: Aphora | 
| Classification 1 | Euphorbiaceae: Ditaxis | 
| Classification 2 | Euphorbiaceae: Argythamnia | 
| Harvard University Herbaria Barcode(s) | 00045696 | 
| Type Status | Isotype | 
| Collector | C. Wright | 
| Collector number | 1798 | 
| Country | United States of America | 
| State | Texas | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Pecos County | 
| Locality | N. Mex. [Valley of the Pecos] | 
| Date Collected | 1851-06-04 | 
| Substrate | [In alluvial soil] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5074e311-b9e5-4347-8b38-7f0ddeaed031 | 
| Harvard University Herbaria Barcode | 00045696 | 
| Herbarium | GH | 
| Family | Euphorbiaceae | 
| Type Status | Isotype | 
| Isotype of | Aphora laevis A. Gray ex Torrey | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2008 | 
| Taxon Reference | (for  Aphora laevis A. Gray ex Torrey) Rep. U.S. Mex. Bound., Bot. 1859. 196. | 
| Family | Euphorbiaceae | 
| Determination | Ditaxis humilis f. laevis (A. Gray ex Torrey) B. L. Turner | 
| Determined by | W. T. Kittredge | 
| Date Determined | 2008 | 
| Determination Remarks | [current name] | 
| Family | Euphorbiaceae | 
| Determination | Argythamnia humilis var. laevis (A. Gray ex Torrey) Shinners | 
| Determined by | J. Ingram | 
| Date Determined | 1952 | 
| Annotation Text | TYPE of: Argythamnia laevis Gray | 
| Family | Euphorbiaceae | 
| Determination | Ditaxis laevis (Torrey) A. Heller | 
| Determined by | I. M. Johnston | 
| Date Determined | 1923 | 
| Annotation Text | I.M.J. Isotype | 
| Family | Euphorbiaceae | 
| Determination | Aphora laevis A. Gray ex Torrey | 
| Determined by | A. Gray | 
| Determination Remarks | [A. Gray (scripsit)] [label name] | 
| Annotation Text | n. sp. | 
| Family | Euphorbiaceae | 
| Determination | Argythamnia laevis (A. Gray ex Torrey) Müller Argoviensis | 
| Determination Remarks | [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |