| Parasenecio W.W. Sm. & Small | |
| Publ. & Syn. | Hasteola auct., non Raf., New Fl. 4: 79 (1836). |
| Notes | Barkley: The genus name Cacalia has been rejected by ICBN (see McNeill et al. 2006: 471). Korobkov: What genus should one include this species in? In Ligularia Cass., Hasteola Raf., or Parasenecio W.W. Sm. & Small? I looked through systematic literature available to me and did not find any sufficient and acceptable nomenclature combination. I suggest to keep its traditional generic name - Cacalia - for this morphologically well differentiated, widely distributed but sparsely arctic taxon. Elven: We include the relevant species in Parasenecio, on the authority of Koyama (1995) and Barkley (2006). The latter author distinguished between Hasteola and Parasenecio, restricted Rafinesque's Hasteola to two eastern and southeastern North American species, and considered all Asian representatives to belong to Parasenecio. This conclusion was reached also by Antipova (1997) even if she applied the name Cacalia for Flora Sibiri. Pelser et al. (2007) accepted Parasenecio as a genus in the Tussilago-Petasites group, i.e., Tussilagininae, but considered Hasteola part of Senecio. |
| Chromosomes | (1) 28 (4x). - Far East (Ayan). - Zhukova et al. (1973). (2) 56-60 (8x). - Siberia (N), Far East (N). - Several reports, numerous counts. (3) ca. 100 >100 (ca. 16x). - Siberia (N, S). - Krogulevich (1971); Yurtsev and Zhukova (1982). |
| Geography | Asian (N/C): RUS SIB RFE. |
| Parent taxon | Asteraceae |
| Child taxa |
Parasenecio hastatus (L.) H. Koyama |
| PAF ID | 8626 |