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CCDB → Angiosperms → Compositae → Symphyotrichum → Virgulus patens var. gracilis (Hook.) Reveal & Keener
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Virgulus patens var. gracilis (Hook.) Reveal & Keener | Symphyotrichum patens var. gracile (Hook.) G. L. Nesom | 5II | IPCN online | Semple, J. C. & J. G. Chmielewski. 1987. Chromosome number determinations in fam. Compositae, tribe Astereae. II. Additional counts. Rhodora 89: 319–325. | |||
| Virgulus patens var. gracilis (Hook.) Reveal & Keener | Symphyotrichum patens var. gracile (Hook.) G. L. Nesom | 10 | IPCN online | Semple, J. C. 1984. Cytogeographic studies on North American Asters. I. Range surveys of Virgulus adnatus, V. concolor, V. georgianus, V. grandiflorus, V. novae-angliae, V. oblongifolius, V. patens and V. walteri. Amer. J. Bot. 71: 522–531. | |||
| Virgulus patens var. gracilis (Hook.) Reveal & Keener | Symphyotrichum patens var. gracile (Hook.) G. L. Nesom | 5II | IPCN online | Semple, J. C., J. Zhang & C. Xiang. 1993. Chromosome number determinations in fam. Compositae, tribe Astereae. V. Eastern North American taxa. Rhodora 95: 234–253. |