| Classification | Rubiaceae: Hedyotis | 
| Classification 1 | Rubiaceae: Houstonia | 
| Harvard University Herbaria Barcode(s) | 00096871 | 
| Type Status | Lectotype | 
| Collector | C. Wright | 
| Collector number | 237 | 
| Country | United States of America | 
| State | Texas | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Kinney County | 
| Locality | Western Texas to El Paso, New Mexico [Live Oak Ck. and to the Las Moras] | 
| Date Collected | 1849-06-29 | 
| Habitat | [High prairies] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2943ddf2-d61f-431b-b61e-c88c6e47ff10 | 
| Harvard University Herbaria Barcode | 00096871 | 
| Herbarium | GH | 
| Family | Rubiaceae | 
| Type Status | Lectotype | 
| Lectotype of | Hedyotis acerosa A. Gray | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2007 | 
| Determination Remarks | [as "Holotype"] | 
| Taxon Reference | (for  Hedyotis acerosa A. Gray) Smithsonian Contr. Knowl. 1852. 3: 81. | 
| Family | Rubiaceae | 
| Determination | Houstonia acerosa (A. Gray) Bentham & Hooker f. | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed | 
| Item Remarks | [Mounted with non-type specimen of C. Wright 1118, 254277] |