| Plant | # Chemicals | Total PPM |
|---|---|---|
| Betula platyphylla | 2 | |
| Betula pendula | 1 | |
| Betula papyrifera | 2 | |
| Betula maximowicziana | 2 | |
| Betula lenta Cherry Birch | 2 | |
| Betula ermanii | 2 | |
| Betula dahurica | 1 | |
| Betula cordifolia | 1 | |
| Betula caerulea-grandis | 1 | |
| Betula caerulea | 1 | |
| Betula alleghaniensis | 1 | |
| Betula alba | 1 | |
| Bidens pilosa | 2 | |
| Bischofia javanica | 1 | |
| Bixa orellana Achiote; Lipstick Pod; Bija; Annoto; Annatto; Lipsticktree; Annato; Arnato | 1 | |
| Bocconia frutescens Tree Poppy | 1 | |
| Bocconia arborea Tree Poppy | 1 | |
| Boehmeria nivea Ramie | 1 | |
| Boehmeria excelsa | 1 | |
| Bonnetia dinizii | 1 |