| Classification | Onagraceae: Ludwigia |
| Harvard University Herbaria Barcode(s) | 00312697 |
| Type Status | Holotype |
| Collector | C. C. Deam |
| Collector number | 42350 |
| Country | United States of America |
| State | Indiana |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Indiana: Porter County |
| Locality | On the low border of Lake Walker about 3/4 mi. northwest of Baileytown |
| Date Collected | 1925-08-23 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4b1df653-8114-4e26-a67f-2c20efda25b4 |
| Harvard University Herbaria Barcode | 00312697 |
| Herbarium | GH |
| Family | Onagraceae |
| Type Status | Holotype |
| Holotype of | Ludwigia sphaerocarpa var. deamii Fernald & Griscom |
| Verified by | Peng, Ching I |
| Date Determined | 1982 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Ludwigia sphaerocarpa var. deamii Fernald & Griscom) Rhodora 1935. 37: 174. |
| Family | Onagraceae |
| Determination | Ludwigia sphaerocarpa Elliott |
| Determined by | Peng, Ching I |
| Date Determined | 1982 |
| Determination Remarks | [current name] |
| Family | Onagraceae |
| Determination | Ludwigia sphaerocarpa var. deamii Fernald & Griscom |
| Determined by | Fernald, Merritt Lyndon |
| Annotation Text | Type n. var. |
| Family | Onagraceae |
| Determination | Ludwigia sphaerocarpa Elliott |
| Determination Remarks | [label name] |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
