| Classification | Lamiaceae |
| Classification 1 | Asteraceae: Parthenium |
| Harvard University Herbaria Barcode(s) | 00010896 |
| Type Status | Holotype, Type |
| Collector | V. L. Cory |
| Collector number | 17587 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Jeff Davis County |
| Locality | 17 miles southwest of Toyahvale |
| Date Collected | 1935-10-30 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/764c12e9-dcbb-4c5e-be23-9c695d3d46af |
| Harvard University Herbaria Barcode | 00010896 |
| Herbarium | GH |
| Family | Lamiaceae |
| Determination | Iva ambrosiifolia (A. Gray) A. Gray |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | InQuestion Parthenium confertum var. lyratum (A. Gray) Rollins |
| Determined by | R. C. Rollins |
| Date Determined | 1946 |
| Annotation Text | This specimen could easily respresent an aberrant type ; [Annotated on sheet] |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Parthenium confertum var. microcephalum Rollins |
| Verified by | Bates, Vernon M. |
| Date Determined | 1983 |
| Determination Remarks | [is filed under name] |
| Annotation Text | Holotype |
| Taxon Reference | (for Parthenium confertum var. microcephalum Rollins) Contr. Gray Herb. 1950. 172: 46. |
| Family | Asteraceae |
| Type Status | Type |
| Type of | Parthenium confertum var. microcephalum Rollins |
| Verified by | Rollins, Reed Clark |
| Date Determined | 1950 |
| Annotation Text | var. nov. ; Type; [Annotated on sheet] |
| Taxon Reference | (for Parthenium confertum var. microcephalum Rollins) Contr. Gray Herb. 1950. 172: 46. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
