| Pinaropappus roseus var. maculatus McVaugh, 1972 |
| Pinaropappus roseus var. roseus (Less.) Less., 1832 |
| Pinaropappus scapiger Walp., 1841 |
| Pinaropappus spathulatus Brandegee, 1906 |
| Pinaropappus spathulatus var. chiapensis McVaugh, 1972 |
| Pinaropappus spathulatus var. spathulatus Brandegee, 1906 |
| Pingraea Cass., 1826 |
| Pingraea rhexioides (Kunth) F.H. Hellw., 1993 |
| Pingraea salicifolia (Ruiz & Pav.) F.H. Hellw., 1993 |
| Pionocarpus S.F. Blake, 1916 |
| Pionocarpus madrensis (S. Watson) S.F. Blake, 1916 |
| Pippenalia McVaugh, 1972 |
| Pippenalia delphiniifolia (Rydb.) McVaugh, 1972 |
| Piptocarpha R. Br., 1817 |
| Piptocarpha chontalensis Baker, 1873 |
| Piptocarpha costaricensis Klatt, 1892 |
| Piptocarpha foliosa Cuatrec., 1955 |
| Piptocarpha laxa Rusby, 1912 |
| Piptocarpha paraensis Cabrera, 1957 |
| Piptocarpha poeppigiana (DC.) Baker, 1873 |