| Classification | Asteraceae: Melampodium |
| Harvard University Herbaria Barcode(s) | 00010069 |
| Type Status | Lectotype, Holotype |
| Collector | E. W. Nelson |
| Collector number | 6939 |
| Country | Mexico |
| State | Michoacán |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Michoacán |
| Locality | Volcano Jorullo |
| Date Collected | 1903-03-28 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0f0a5165-1a76-4aaa-a5c7-aeaf2c7c98fb |
| Harvard University Herbaria Barcode | 00010069 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Lectotype |
| Lectotype of | Melampodium nelsonii Greenman |
| Verified by | V. Bates |
| Date Determined | 1983 |
| Taxon Reference | (for Melampodium nelsonii Greenman) Proc. Amer. Acad. Arts 1905. 41: 260. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Melampodium nelsonii Greenman |
| Verified by | T.F. Stuessy (TEX) |
| Date Determined | 1968-07-17 |
| Taxon Reference | (for Melampodium nelsonii Greenman) Proc. Amer. Acad. Arts 1905. 41: 260. |
| Family | Asteraceae |
| Determination | Melampodium americanum Linnaeus |
| Determined by | T.F. Stuessy (TEX) |
| Date Determined | 1968 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Melampodium nelsonii Greenman |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
