| Classification | Asteraceae: Eupatorium |
| Classification 1 | Asteraceae: Koanophyllon |
| Classification 2 | Asteraceae: Eupatorium |
| Harvard University Herbaria Barcode(s) | 00007426 |
| Type Status | Holotype, Type |
| Collector | Edw. Palmer |
| Collector number | 1474 |
| Country | Mexico |
| State | Sinaloa |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sinaloa |
| Locality | Ymala |
| Date Collected | 1891-08-16 - 1891-08-25 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/545179a5-f313-46f9-86e8-b5e5309c0c47 |
| Harvard University Herbaria Barcode | 00007426 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Eupatorium albicaule var. laxius B. L. Robinson |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | Eupatorium albicaule var. laxius B. L. Robinson |
| Determined by | B. L. Robinson (GH) |
| Family | Asteraceae |
| Determination | Koanophyllon albicaulis (Schultz Bipontinus ex Klatt) R. M. King & H. Robinson |
| Determined by | R.M. King & H. Robinson (US) |
| Date Determined | 1977 |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium ymalense B. L. Robinson |
| Verified by | R.M. King & H. Robinson (US) |
| Date Determined | 1977 |
| Taxon Reference | (for Eupatorium ymalense B. L. Robinson) Contr. Gray Herb. 1925. 75: 14. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium ymalense B. L. Robinson |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium ymalense B. L. Robinson) Contr. Gray Herb. 1925. 75: 14. |
| Family | Asteraceae |
| Type Status | Type |
| Type of | Eupatorium albicaule var. laxius B. L. Robinson |
| Verified by | D.E. Boufford (A) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium albicaule var. laxius B. L. Robinson) Proc. Amer. Acad. Arts 1900. 35: 330. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
