A three-leaved plant that grows in woods and countryside and makes people’s skin itch and swell:
| POISON IVY | 816 |
| POISON OAK | 353 |
| POISON IVORY | 35 |
| NR | 20 |
| POISONOUS IVY | 19 |
| IVY | 18 |
| POISON | 16 |
| IVY POISON | 6 |
| NH | 6 |
| POISON VINE | 6 |
| NETTLES | 4 |
| COWITCH | 3 |
| MERCURY | 3 |
| COWITCH VINE | 2 |
| POISON SHUMAC | 2 |
| SHUMAC | 2 |
| SUMAC | 2 |
| AUHUHU | 1 |
| BRENNESSEL | 1 |
| BUGLE VINE | 1 |
| CUCKLEBURRS | 1 |
| GINGER ROOT | 1 |
| INAKOA | 1 |
| INDIAN TURNIP | 1 |
| ITCH WEED | 1 |
| ITCHY PLANT | 1 |
| IVORY VINE | 1 |
| MOUNTAIN MISERY | 1 |
| MULLEIN | 1 |
| NETTLE | 1 |
| OAK POISONING | 1 |
| PIZEN VINE | 1 |
| POISON BUSH | 1 |
| POISON IVY VINE | 1 |
| POISON NETTLES | 1 |
| POISON OAK BUSH | 1 |
| POISON SHOEMAKE | 1 |
| POISONED OAK | 1 |
| POISONOUS IVORY | 1 |
| POISONOUS OAK | 1 |
| SMARTWEED | 1 |
| STICKER WEED | 1 |
| STINGING NETTLE | 1 |
| THISTLE | 1 |
| THREE-LEAFED IVY | 1 |
| TREFOIL | 1 |
| TRESAL | 1 |
| TRILLIUM | 1 |
| WHITE ROBIN | 1 |
| WILD IVY | 1 |
| WOOD IVY | 1 |
DARE Data Summary by Dictionary of American Regional English (DARE) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.