| Plant of the arum family | 24 |
| Plant of the bean family | 24 |
| Plant of the buttercup family | 29 |
| Plant of the carrot family | 26 |
| Plant of the cashew family | 26 |
| Plant of the crucifer family | 28 |
| Plant of the figwort family | 27 |
| Plant of the geranium family | 28 |
| Plant of the ginseng family | 27 |
| Plant of the goosefoot family | 29 |
| Plant of the Iris family | 24 |
| Plant of the leadwort family | 28 |
| Plant of the legume family | 26 |
| Plant of the lily family | 24 |
| Plant of the madder family | 26 |
| Plant of the mallow family | 26 |
| Plant of the mimosa family | 26 |
| Plant of the mint family | 24 |
| Plant of the mustard family | 27 |
| Plant of the myrtle family | 26 |
| Plant of the nettle family | 26 |
| Plant of the parsley family | 27 |
| Plant of the pea family | 23 |
| Plant of the phlox family | 25 |
| Plant of the pink family | 24 |
| Plant of the primrose family | 28 |
| Plant of the purslane family | 28 |
| Plant of the rose family | 24 |
| Plant of the umbel family | 25 |
| Plant of the valerian family | 28 |
| Plant of the verbena family | 27 |
| Plant of the violet family | 26 |
| Plant on college buildings | 26 |
| Plant once used as a laxative | 29 |
| Plant or tree extracts | 22 |
| Plant parts that absorb water | 29 |
| Plant poisonous to fish | 23 |
| Plant production: Abbr. | 23 |
| Plant related to an iris | 24 |
| Plant related to pepper | 23 |
| Plant related to the onion | 26 |
| Plant renewing itself yearly | 28 |
| Plant reproduction prefix | 25 |
| Plant reproductive bodies | 25 |
| Plant reproductive body | 23 |
| Plant reproductive cell | 23 |
| Plant reproductive part | 23 |
| Plant resembling spinach | 24 |
| Plant resembling the yucca | 26 |
| Plant said to repel bugs | 24 |
| Plant source of vitamin A | 25 |
| Plant swelling problem | 22 |
| Plant that can be poisonous | 27 |
| Plant that can grow on trees | 28 |
| Plant that gives us latex | 25 |
| Plant that grows on animals | 27 |
| Plant that lives two years | 26 |
| Plant that poisons livestock | 28 |
| Plant that resembles an onion | 29 |
| Plant that sometimes closes | 27 |
| Plant that yields atropine | 26 |
| Plant that yields Japan wax | 27 |
| Plant used as a cathartic | 25 |
| Plant used as a cleanser | 24 |
| Plant used as an astringent | 27 |
| Plant used as bird feed | 23 |
| Plant used as flavoring | 23 |
| Plant used as ground cover | 26 |
| Plant used by Prudhomme | 23 |
| Plant used cosmetically | 23 |
| Plant used for blue dye | 23 |
| Plant used for first aid | 24 |
| Plant used for flavoring | 24 |
| Plant used for making pipes | 27 |
| Plant used for seasoning | 24 |
| Plant used for skin lotions | 27 |
| Plant used in cosmetics | 23 |
| Plant used in folk medicine | 27 |
| Plant used in food coloring | 27 |
| Plant used in making poi | 24 |
| Plant used in treating burns | 28 |
| Plant used medicinally | 22 |
| Plant used to make mescal | 25 |
| Plant used to make poi | 22 |
| Plant used to make tequila | 26 |
| Plant used to treat burns | 25 |
| Plant with a bitter fruit | 25 |
| Plant with a bitter root | 24 |
| Plant with a chewable leaf | 26 |
| Plant with a fragrant root | 26 |
| Plant with a medicinal root | 27 |
| Plant with an edible root | 25 |
| Plant with aromatic foliage | 27 |
| Plant with aromatic leaves | 26 |
| Plant with colorful flowers | 27 |
| Plant with cup-shaped flowers | 29 |
| Plant with daisy-like flowers | 29 |
| Plant with edible seeds | 23 |
| Plant with feathery leaves | 26 |
| Plant with fiddleheads | 22 |