| Classification | Rubiaceae: Hedyotis | 
| Classification 1 | Rubiaceae: Stenaria | 
| Classification 2 | Rubiaceae: Houstonia | 
| Harvard University Herbaria Barcode(s) | 00263793 | 
| Type Status | Holotype | 
| Collector | C. Wright | 
| Collector number | 239 | 
| Country | United States of America | 
| State | Texas | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas | 
| Locality | Western Texas to El Paso, New Mexico [toward the Rio Grande] | 
| Date Collected | 1849-08-30 | 
| Habitat | [Mountain valleys] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f84e44ae-6937-49f8-9a29-d533a5eae8a5 | 
| Harvard University Herbaria Barcode | 00263793 | 
| 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 | 
| Determination | Stenaria nigricans (Lamarck) Terrell | 
| Determined by | W. T. Kittredge | 
| Date Determined | 2008 | 
| Determination Remarks | [current name] | 
| Annotation Text | Sida 19: 600. 2001. see Syst. Bot. Monogr. 48: 103. 1996 | 
| Family | Rubiaceae | 
| Determination | Hedyotis stenophylla var. parviflora A. Gray | 
| Determined by | A. Gray | 
| Determination Remarks | [A. Gray (scripsit)] [label name] | 
| Annotation Text | strictior | 
| Family | Rubiaceae | 
| Determination | Houstonia angustifolia Michaux | 
| Determined by | A. Gray | 
| Determination Remarks | [A. Gray (scripsit)] | 
| Annotation Text | Syn. Fl. N. Amer. | 
| Family | Rubiaceae | 
| Determination | Houstonia angustifolia Michaux | 
| Determined by | B. L. Robinson | 
| Determination Remarks | [B. L. Robinson (scripsit)] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |