Science magazines
- Haha (Cyanea hamatiflora ssp. hamatiflora)
- Haha (Cyanea humboldtiana)
- Haha (Cyanea koolauensis)
- Haha (Cyanea lobata)
- Haha (Cyanea longiflora)
- Haha (Cyanea mannii)
- Haha (Cyanea mceldowneyi)
- Haha (Cyanea pinnatifida)
- Haha (Cyanea platyphylla)
- Haha (Cyanea procera)
- Haha (Cyanea recta)
- Haha (Cyanea remyi)
- Haha (Cyanea shipmannii)
- Haha (Cyanea st.-johnii)
- Haha (Cyanea stictophylla)
- Haha (Cyanea truncata)
- Hairy Orcutt Grass
- Hairy Rattleweed
- Hala Pepe
- Haleakala Silversword