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CCDB → Angiosperms → Compositae → Xanthisma → Haplopappus spinulosus subsp. spinulosus
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Haplopappus spinulosus subsp. spinulosus | Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. | 8, 16 | IPCN online | Hauber, D. 1986. Autotetraploidy in Haplopappus spinulosus hybrids: evidence from natural and synthetic tetraploids. Amer. J. Bot. 73: 1595–1606. | |||
| Haplopappus spinulosus subsp. spinulosus | Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. | 4II | 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 spinulosus subsp. spinulosus | Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. | 8 | IPCN67-71 | SOLBRIG, Q.T., L.C. ANDERSON, D.W. KYHOS, & P.H. RAVEN. 1969. Chromosome numbers in Compositae. VIII: Astereae III. Amer. J. Bot. 56: 348-353. | ||
| ! | Haplopappus spinulosus subsp. spinulosus | Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. | 4 | Cave1957 | Jackson a |