| Classification | Asteraceae |
| Classification 1 | Asteraceae: Haplopappus |
| Classification 2 | Asteraceae: Machaeranthera |
| Classification 3 | Asteraceae: Haplopappus |
| Harvard University Herbaria Barcode(s) | 00008716 |
| Type Status | Holotype |
| Collector | I. M. Johnston |
| Collector number | 7066 |
| Country | Mexico |
| State | Coahuila |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila |
| Locality | Road from Piedras Negras to Monclova, one mile south of 4 Hermanas. |
| Date Collected | 1938-08-22 - 1938-08-24 |
| Substrate | Dry heavy alkaline soil |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b240dec8-c945-4f65-ae51-e0b317972a5e |
| Harvard University Herbaria Barcode | 00008716 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Haplopappus Cassini |
| Determination Remarks | [is label name] |
| Annotation Text | Aplopappus n sp |
| Family | Asteraceae |
| Determination | Haplopappus johnstonii S. F. Blake |
| Determination Remarks | Written on sheet next to collector label |
| Annotation Text | Type |
| Family | Asteraceae |
| Determination | Machaeranthera johnstonii (Blake) Turner |
| Determined by | B. L. Turner (TEX) |
| Date Determined | 1971 |
| Determination Remarks | [is Current name] |
| Annotation Text | HOLOTYPE |
| Family | Asteraceae |
| Determination | Machaeranthera johnstonii (Blake) Turner |
| Determined by | R. L. Hartman (TEX) |
| Date Determined | 1975 |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Haplopappus johnstonii S. F. Blake |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1983 |
| Taxon Reference | (for Haplopappus johnstonii S. F. Blake) Proc. Biol. Soc. Washington 1941. 54: 18. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
