All Species in Proboscidea
- Desert Unicorn-Plant (Proboscidea althaeifolia)
- Doubleclaw (Proboscidea parviflora)
- New Mexico Unicorn-Plant (Proboscidea spicata)
- Proboscidea diversifolia (Proboscidea diversifolia)
- Proboscidea louisianica subsp. fragrans (Proboscidea louisianica subsp. fragrans)
- Proboscidea louisianica subsp. louisianica (Proboscidea louisianica subsp. louisianica)
- Proboscidea parviflora subsp. gracillima (Proboscidea parviflora subsp. gracillima)
- Proboscidea parviflora subsp. parviflora (Proboscidea parviflora subsp. parviflora)
- Proboscidea parviflora subsp. sinaloensis (Proboscidea parviflora subsp. sinaloensis)
- Proboscidea parviflora var. hohokamiana (Proboscidea parviflora var. hohokamiana)
- Proboscidea triloba (Proboscidea triloba)
- Ram's Horn (Proboscidea louisianica)
- Sanddune Unicorn-Plant (Proboscidea sabulosa)