| 1. | any fern of the genus Botrychium, esp. B. lunaria, a rare fern having fronds with crescent-shaped leaflets. |
| 2. | honesty (def. 4). |
| grape fern n. Any of various ferns of the genus Botrychium, having a fertile frond bearing small, grapelike clusters of spore cases. Also called moonwort. |
moon·wort (mōōn'wûrt', -wŏrt') n. See grape fern. |