Prof. Itay Mayrose Lab – Plant Evolution, Bioinformatics, & Comparative Genomics
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CCDB → Angiosperms → Compositae → Tetragonotheca
5 species in "Tetragonotheca" :
| Taxon name | Status | Median (n) |
| Tetragonotheca helianthoides L. | Accepted | 17 |
| Tetragonotheca repanda (Buckley) Small | Accepted | 17 |
| Tetragonotheca texana Engelm. & A. Gray ex A. Gray & Engelm. | Accepted | 17 |
| Tetragonotheca ludoviciana A. Gray | Unresolved | 17 |
| Tetragonotheca ludoviciana (Torr. & A. Gray) A. Gray ex E. Hall | Synonym of Tetragonotheca ludoviciana A. Gray | 17 |