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CCDB → Angiosperms → Compositae → Symphyotrichum → Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Symphyotrichum novi-belgii var. tardiflorum (L.) G. L. Nesom | Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz | 24II(5) | Asteracea | Jones, A. G. 1980 Brittonia | ||
| ! | Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz | Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz | 32, 33, 34(1, 1, 1) | Asteracea | Semple & B. 1980 Amer. J. Bot. | ||
| ! | Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz | Symphyotrichum × tardiflorum (L.) Greuter & M. V. Agab. & Wagenitz | 24II(2) | Asteracea | Jones, A. G. 1980 Brittonia |