| Classification | Asteraceae: Cirsium |
| Classification 1 | Asteraceae: Cnicus |
| Harvard University Herbaria Barcode(s) | 00006072 |
| Type Status | Lectotype, Type |
| Collector | |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas |
| Locality | De Bexar (San Antonio) a Medina |
| Date Collected | 1834-06-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/fa512579-689f-44a7-ab5e-d64a6a66ddd6 |
| Harvard University Herbaria Barcode | 00006072 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Cirsium undulatum var. megacephalum (A. Gray) Fernald |
| Determined by | [A. Gray (scripsit) J. McI. Shapiro, 2020] |
| Determination Remarks | [is label name] |
| Annotation Text | Syn. Fl. N. Amer. |
| Family | Asteraceae |
| Determination | Cirsium undulatum var. megacephalum (A. Gray) Fernald |
| Determined by | B. L. R. [Benjamin Lincoln Robinson] |
| Date Determined | 1911 |
| Annotation Text | Nomencl. Rev. Acc. To Internat. Rules |
| Family | Asteraceae |
| Determination | Cirsium undulatum (Nuttall) Sprengel |
| Determined by | G. B. Ownbey |
| Date Determined | 1960 |
| Annotation Text | "typical" |
| Family | Asteraceae |
| Type Status | Lectotype |
| Lectotype of | Cnicus undulatus var. megacephalus A. Gray |
| Verified by | G. B. Ownbey |
| Date Determined | 1960 |
| Annotation Text | LECTOTYPE |
| Taxon Reference | (for Cnicus undulatus var. megacephalus A. Gray) Proc. Amer. Acad. Arts 1875. 10: 42. |
| Family | Asteraceae |
| Type Status | Type |
| Type of | Cnicus undulatus var. megacephalus A. Gray |
| Verified by | L. H. Shinners |
| Date Determined | 1946-02-15 |
| Determination Remarks | [is filed under name] [is Current name] |
| Annotation Text | TYPE (Lectotype) |
| Taxon Reference | (for Cnicus undulatus var. megacephalus A. Gray) Proc. Amer. Acad. Arts 1875. 10: 42. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Description | [Annotated as a lectotype by L. H. Shinners (1946) and G. B. Ownbey (1960), but no publication reference given.] |
