| Classification | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00282831 |
| Type Status | Type |
| Collector | C. C. Parry |
| Collector number | 492 [p.p.] |
| Country | United States of America |
| State | Colorado |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado |
| Locality | Lat. 39°-41° |
| Date Collected | 1862 |
| Elevation | 0 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/06dd4bc3-4dc3-4f46-b097-f5a32a7b3144 |
| Harvard University Herbaria Barcode | 00282831 |
| Herbarium | GH |
| Family | Polygonaceae |
| Type Status | Type |
| Type of | Polygonum tenue var. microspermum Engelmann |
| Verified by | K. N. Gandhi & W. T. Kittredge |
| Date Determined | 2010 |
| Taxon Reference | (for Polygonum tenue var. microspermum Engelmann) Proc. Acad. Nat. Sci. Philadelphia 1863. [15]: 75, adnot.. |
| Family | Polygonaceae |
| Determination | Polygonum engelmannii Greene |
| Determined by | K. N. Gandhi & W. T. Kittredge |
| Date Determined | 2010 |
| Determination Remarks | [current name] |
| Annotation Text | fide M. Costea & F. J. Tardif, Brittonia 57(1): 16. 2005 |
| Family | Polygonaceae |
| Determination | Polygonum microspermum (Engelmann) Small |
| Determined by | J. K. Small |
| Annotation Text | J.K.S. Monog. Am. Polyg. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with Type of Polygonum tenue var. commune Engelmann, Hall & Harbour 492 p.p., 282832, and non-type specimen of Parry 322, 282833] |
