| Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. | |
| Publ. & Syn. | Fisch. & C.A. Mey., Index Sem. Hort. Petrop. 1: 40 (1835). Type (LE): Siberia: Dahuria, leg. Turczaninow. |
| Notes | We accept the northeastern Asian and northwestern North American plants of Thalictrum sparsiflorum as two subspecies. Boivin (1944) described two additional Cordilleran varieties and stated that all his varieties were allopatric and morphologically separable. |
| Chromosomes | (1) 14 (2x). - Europe (N, C), Russia (N), Siberia (N, S), Far East (N), Alaska, Canada, Greenland. - Numerous reports. (2) 21 (3x). - Alaska. - Johnson and Packer in Mooney and Johnson (1965). Johnson: Triploids were collected and counted repeatedly at Ogotoruk Creek in northwestern Alaska. They looked like the diploids and they were fertile. There is some mystery here worth investigating. |
| Geography | Asian (N/C) - amphi-Beringian - North American (NW). |
| Parent taxon | Thalictrum L. |
| Child taxa |
Thalictrum sparsiflorum subsp. richardsonii (A. Gray) Cody Thalictrum sparsiflorum subsp. sparsiflorum |
| PAF ID | 360602 |