| Classification | Gentianaceae: Centaurium |
| Classification 1 | Gentianaceae: Erythraea |
| Classification 2 | Gentianaceae: Centaurium |
| Classification 3 | Gentianaceae: Erythraea |
| Classification 4 | Gentianaceae: Centaurium |
| Classification 5 | Gentianaceae: Zeltnera |
| Classification 6 | Gentianaceae: Erythraea |
| Harvard University Herbaria Barcode(s) | 00026452 |
| Type Status | Isolectotype |
| Collector | C. Wright |
| Collector number | 1662 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Val Verde County |
| Locality | [at camp at big bend of the San Pedro (Devils River)] |
| Date Collected | 1851-05-21 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/74bc9c7a-0a29-4b17-a738-47f273a2e4e8 |
| Harvard University Herbaria Barcode | 00026452 |
| Herbarium | GH |
| Family | Gentianaceae |
| Determination | Centaurium calycosum var. nanum (A. Gray) B. L. Robinson |
| Determined by | [annotation on sheet] |
| Family | Gentianaceae |
| Determination | Erythraea beyrichii Torrey & A. Gray |
| Determination Remarks | [is label name] |
| Family | Gentianaceae |
| Determination | Centaurium sp. |
| Determined by | Dunn, Rosalie A. |
| Date Determined | 1970-09-** |
| Annotation Text | Centaurium arizonicum x texense |
| Family | Gentianaceae |
| Determination | Erythraea calycosa var. nana A. Gray |
| Determined by | Dunn, Rosalie A. |
| Date Determined | 1970-09-** |
| Annotation Text | isotype |
| Family | Gentianaceae |
| Determination | Centaurium calycosum (Buckley) Fernald |
| Determined by | Turner, Billie Lee |
| Date Determined | 1993 |
| Family | Gentianaceae |
| Determination | Zeltnera calycosa (Buckley) G. Mansion |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2013 |
| Determination Remarks | [is Current name] |
| Family | Gentianaceae |
| Type Status | Isolectotype |
| Isolectotype of | Erythraea calycosa var. nana A. Gray |
| Verified by | Turner, Billie Lee |
| Date Determined | 1993 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Erythraea calycosa var. nana A. Gray) Syn. Fl. N. Amer. 1878. 2: 113. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
