All Species in Justicia
- Beloperone (Justicia californica)
- Cooley's Water-Willow (Justicia cooleyi)
- Culebrita Island Water-Willow (Justicia culebritae)
- Gregg's Tube Tongue (Justicia pilosella)
- Longflower Tube Tongue (Justicia longii)
- Looseflower Water-Willow (Justicia lanceolata)
- Puerto Rico Water-Willow (Justicia martinsoniana)
- Runyon's Water-Willow (Justicia pacifica)
- Sonoran Water-Willow (Justicia sonorae)
- Tropical Waterwillow (Justicia sphaerosperma)
- Warnock's Water-Willow (Justicia warnockii)
- West Indian Water-Willow (Justicia mirabiloides)
- Wright's Waterwillow (Justicia wrightii)