| Classification | Rubiaceae: Hedyotis |
| Classification 1 | Rubiaceae: Houstonia |
| Classification 2 | Rubiaceae: Stenaria |
| Harvard University Herbaria Barcode(s) | 00096950 |
| Type Status | Holotype |
| Collector | C. Wright |
| Collector number | 238 |
| 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 | Western Texas to El Paso, New Mexico [Devils River] |
| Date Collected | 1849-07-28 |
| Habitat | [High hills, rock crevices] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b396e200-90e5-47bc-8f8b-3234993aa660 |
| Harvard University Herbaria Barcode | 00096950 |
| Herbarium | GH |
| Family | Rubiaceae |
| Type Status | Holotype |
| Holotype of | Hedyotis stenophylla var. parviflora A. Gray |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Determination Remarks | [Gray legitimately published this name twice on the same page with different latin diagnoses, based on two different collections, 238 & 239] |
| Taxon Reference | (for Hedyotis stenophylla var. parviflora A. Gray) Smithsonian Contr. Knowl. 1852. 3(5): 81. |
| Family | Rubiaceae |
| Type Status | Holotype |
| Holotype of | Houstonia rupicola Greenman |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Taxon Reference | (for Houstonia rupicola Greenman) Proc. Amer. Acad. Arts 1897. 32: 286. |
| Family | Rubiaceae |
| Determination | Stenaria rupicola (Greenman) Terrell |
| Determined by | W. T. Kittredge |
| Date Determined | 2008 |
| Determination Remarks | [current name] |
| Annotation Text | Sida 16: 608. 2001 |
| Family | Rubiaceae |
| Determination | Hedyotis stenophylla var. parviflora A. Gray |
| Determined by | A. Gray |
| Determination Remarks | [A. Gray (scripsit)] [label name] |
| Family | Rubiaceae |
| Determination | Houstonia fasciculata A. Gray |
| Determined by | A. Gray |
| Determination Remarks | [A. Gray (scripsit)] |
| Annotation Text | Syn. Fl. N. Amer. |
| Family | Rubiaceae |
| Determination | Houstonia rupicola Greenman |
| Annotation Text | n. sp. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
