CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Angiosperms → Compositae → Hazardia → Haplopappus squarrosus subsp. squarrosus
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Haplopappus squarrosus subsp. squarrosus | Hazardia squarrosa (Hook. & Arn.) Greene | c.5II | IPCN online | Semple, J. C. 1985. Chromosome number determinations in fam. Compositae tribe Astereae. Rhodora 87: 517–527. | |||
| Haplopappus squarrosus subsp. squarrosus | Hazardia squarrosa (Hook. & Arn.) Greene | 5II | IPCN online | Semple, J. C., J. G. Chmielewski & M. E. Lane. 1989. Chromosome number determinations in fam. Compositae, tribe Astereae. III. Additional counts and comments on generic limits and ancestral base numbers. Rhodora 91: 296–314. | |||
| Haplopappus squarrosus subsp. squarrosus | Hazardia squarrosa (Hook. & Arn.) Greene | 5 | IPCN online | Jackson, R. C. 1979. Intersectional hybridization in Haplopappus: Blepharodon X Hazandia. Syst. Bot. 4: 157–162. | |||
| ! | Haplopappus squarrosus subsp. squarrosus | Hazardia squarrosa (Hook. & Arn.) Greene | 5 | IPCN73-74 | JACKSON, R.C. 1968. Hybridization and classification of Haplo~ br'ickellioides. Univ. Kansas Sci. Bull. 47: 1005-1012. | ||
| Haplopappus squarrosus subsp. squarrosus | Hazardia squarrosa (Hook. & Arn.) Greene | 10 | Cave1963 | DeJong & Mont. 1963 |