| Plant like cabbage | 18 |
| Plant liquid | 12 |
| Plant louse | 11 |
| Plant malady | 12 |
| Plant manager? | 14 |
| Plant material used for fuel | 28 |
| Plant matter used as a plant covering | 37 |
| Plant membranes | 15 |
| Plant modified by environment | 29 |
| Plant moisture buildup | 22 |
| Plant more crops in | 19 |
| Plant more seed | 15 |
| Plant moved by an ant, in song | 30 |
| Plant named for a former Yucatán port | 40 |
| Plant named for a governor of Santo Domingo | 43 |
| Plant named for a Jesuit | 24 |
| Plant native to S. Africa | 25 |
| Plant native to Taiwan | 22 |
| Plant need | 10 |
| Plant new crops | 15 |
| Plant new seeds | 15 |
| Plant new trees | 15 |
| Plant nuisance | 14 |
| Plant nursery activity | 22 |
| Plant nursery started by a football Hall-of-Famer? | 50 |
| Plant of a sort | 15 |
| Plant of amaryllis family | 25 |
| Plant of arum family | 20 |
| Plant of carrot family | 22 |
| Plant of forgetfulness | 22 |
| Plant of lily family | 20 |
| Plant of mint family | 20 |
| Plant of mixed origin | 21 |
| Plant of pea family | 19 |
| Plant of primrose family | 24 |
| Plant of rock | 13 |
| Plant of South | 14 |
| Plant of the agave family | 25 |
| Plant of the amaryllis family | 29 |
| Plant of the arrowroot family | 29 |
| Plant of the arum family | 24 |
| Plant of the bean family | 24 |
| Plant of the bellflower family | 30 |
| 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 future | 19 |
| 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 nightshade family | 30 |
| 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 of the water lily family | 30 |
| Plant offshoot | 14 |
| Plant on after a wildfire, say | 30 |
| Plant on college buildings | 26 |
| Plant on the back of Arizona's state quarter | 48 |
| Plant on the back of old pennies | 32 |
| Plant once considered a source of courage | 41 |
| Plant once thought to cure rabies | 33 |
| Plant once used as a laxative | 29 |
| Plant one on | 12 |
| Plant opening | 13 |
| Plant openings | 14 |
| Plant or animal part | 20 |
| Plant or bird | 13 |
| Plant or head | 13 |
| Plant or mole | 13 |
| Plant or ointment | 17 |
| Plant or pie place | 18 |
| Plant or tree extracts | 22 |
| Plant organ | 11 |
| Plant organisms | 15 |
| Plant organs | 12 |
| Plant origins | 13 |
| Plant output | 12 |
| Plant owner (abbr.) | 19 |