| Classification | Euphorbiaceae: Aphora |
| Classification 1 | Euphorbiaceae: Argythamnia |
| Classification 2 | Euphorbiaceae: Ditaxis |
| Classification 3 | Euphorbiaceae: Argythamnia |
| Classification 4 | Euphorbiaceae: Ditaxis |
| Classification 5 | Euphorbiaceae: Aphora |
| 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 |
| Determination | Aphora laevis A. Gray ex Torrey |
| Determined by | A. Gray |
| Determination Remarks | [A. Gray (scripsit)] [is label name] |
| Annotation Text | n. sp. |
| Family | Euphorbiaceae |
| Determination | Argythamnia laevis (A. Gray ex Torrey) Müller Argoviensis |
| Determination Remarks | [is label name] |
| 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 | 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 humilis f. laevis (A. Gray ex Torrey) B. L. Turner |
| Determined by | W. T. Kittredge |
| Date Determined | 2008 |
| Determination Remarks | [is Current name] |
| 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. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
