| Classification | Asteraceae: Porophyllum | 
| Harvard University Herbaria Barcode(s) | 00011420 | 
| Type Status | Isosyntype | 
| Collector | C. G. Pringle | 
| Collector number | 4292 | 
| Country | Mexico | 
| State | Michoacán | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Michoacán | 
| Locality | Querendaro | 
| Date Collected | 1892-10-25 | 
| Habitat | Rocky hills | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8b181881-578d-407a-87e5-7b1b9d71a0ae | 
| Harvard University Herbaria Barcode | 00011420 | 
| Herbarium | GH | 
| Previous ownership | Ex Compositae of Dr. F. W. Klatt (Purchased 1898) | 
| Family | Asteraceae | 
| Type Status | Isosyntype | 
| Isosyntype of | Porophyllum nutans B. L. Robinson & Greenman | 
| Verified by | Harvard University Herbaria LAPI Team | 
| Date Determined | 2008-07-01 | 
| Determination Remarks | "Pringle, Querendaro, 25 Oct 1892" noted on label | 
| Taxon Reference | (for  Porophyllum nutans B. L. Robinson & Greenman) Proc. Amer. Acad. Arts 1896. 32: 31. | 
| Family | Asteraceae | 
| Determination | Porophyllum nutans B. L. Robinson & Greenman | 
| Determined by | R. R. Johnson | 
| Date Determined | 1964 | 
| Determination Remarks | [current name] | 
| Family | Asteraceae | 
| Determination | Porophyllum nutans B. L. Robinson & Greenman | 
| Determined by | B. L. Robinson (GH) | 
| Date Determined | 1911 | 
| Family | Asteraceae | 
| Determination | Porophyllum ervendbergii A. Gray | 
| Determination Remarks | [label name] | 
| Family | Asteraceae | 
| Determination | Porophyllum nutans B. L. Robinson & Greenman | 
| Annotation Text | n. sp. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |