| Classification | Brassicaceae: Sisymbrium |
| Classification 1 | Brassicaceae: Mostacillastrum |
| Classification 2 | Brassicaceae: Thelypodium |
| Harvard University Herbaria Barcode(s) | 00019779 |
| Type Status | Holotype |
| Collector | C. H. Muller & M. T. Muller |
| Collector number | 548 |
| Country | Mexico |
| State | Nuevo León |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Nuevo León: Monterrey |
| Locality | Sierra Madre Mts. |
| Date Collected | 1933-07-23 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/fca7845a-1620-42d9-bb76-62385a4545cf |
| Harvard University Herbaria Barcode | 00019779 |
| Herbarium | GH |
| Previous ownership | Herbarium of the University of Texas |
| Family | Brassicaceae |
| Type Status | Holotype |
| Holotype of | Sisymbrium longipes Rollins |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2012 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Sisymbrium longipes Rollins) Rhodora 1957. 59: 65. |
| Family | Brassicaceae |
| Determination | Mostacillastrum longipes (Rollins) Al-Shehbaz |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2012 |
| Determination Remarks | [current name] |
| Family | Brassicaceae |
| Determination | Thelypodium longipes (Rollins) Rollins |
| Determined by | Rollins, Reed Clark |
| Date Determined | 1975 |
| Family | Brassicaceae |
| Determination | Sisymbrium longipes Rollins |
| Determined by | Rollins, Reed Clark |
| Date Determined | 1957 |
| Annotation Text | Type |
| Sex | not determined |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
