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| Family | Asteraceae |
| Basionym | Otopappus koelzii McVaugh |
| Original Identification | Otopappus koelzii McVaugh |
| Current Taxon | Otopappus koelzii McVaugh |
| Protologue Citation | Contributions from the University of Michigan Herbarium 9(4): 425, f. 32. 1972. |
| Holotype/Isotype | Isotype |
| DUKE Accession Number | 224050 |
| Comments | |
| Primary Collector | Charles Feddema |
| Collector Number | 2729A |
| Collection Date | 24 Nov 1963 |
| Country | Mexico |
| Province/State | Michoacan |
| Plant Location Notes | Near Cruz de Campo, about 10 km. southeast of Aquila; karstic limestone with Comocladia and Bursera, also tropical subdeciduous forest with Brosimum and Astronium; elevation 50 m. |
| Plant Description Notes | Common. Vine, in trees 3-10 ft above road. Rays yellow orange. Disk brownish yellow. |
| DUKE Barcode | |
| Broad geographical location | North America |
