| P Aloe vera (Bitter Aloes) |
| P Apocynum androsaemifolium (Bitterroot; Spreading Dogbane) |
| P Apocynum cannabinum (Bitterroot; Spreading Dogbane) |
| P Calea zacatechichi (Bitter Grass) |
| P Citrus aurantium (Bitter Orange) |
| P Citrus aurantium (Bitter Orange) |
| P Lactuca virosa (Bitter Lettuce) |
| P Momordica charantia (Bitter Melon) |
| P Neurolaena lobata (Bitter Wood) |
| P Picrasma excelsa (Bitterwood; Jamaican Quassia) |
| P Prunus africana (Bitter Almond) |
| P Quassia amara (Bitterwood; Quassia) |
| P Solanum dulcamara (Bitter Nightshade) |
| E Scaevola frutescens (Akar-pahit (Bitter vine)) |
| E Celastrus scandens (Waxwork; American Bittersweet; Falsa Dulcamara; Douce Amer De L'Amerique; Amerikaanse Bitterzoet; Bittersweet; Amerikani) |
| E Prunus dulcis (Bitter Almond) |
| E Brucea javanica (Melada pahit (Bitter pepper)) |
| E Solanum dulcamara (E'Nab Al Tha'Lab; K'U Ch'Ieh; Yaban Yasemini; Bittersweet; Hab Al A'Lam; Hundaebaer; Shu Yang Ch'Uan; Helwa Morrah; Dulc) |
| E Eurycoma longifolia (Penawar pahit (Bitter antidote) |
| E Cola acuminata (Bitter) |