The Collaborative International Dictionary of English v.0.48:

Lunary \Lu"na*ry\, n. [Cf. F. lunaire.] (Bot.)
   (a) The herb moonwort or "honesty".
   (b) A low fleshy fern (Botrychium Lunaria) with lunate
       segments of the leaf or frond.
       [1913 Webster] Lunate

The Collaborative International Dictionary of English v.0.48:

Moonwort \Moon"wort`\ (m[=oo]n"w[^u]rt`), n. (Bot.)
      (a) The herb lunary or honesty. See Honesty.
      (b) Any fern of the genus Botrychium, esp. Botrychium
          Lunaria; -- so named from the crescent-shaped
          segments of its frond.
          [1913 Webster]

WordNet (r) 3.0 (2006):

Botrychium lunaria
    n 1: of America and Eurasia and Australia [syn: moonwort,
         common moonwort, Botrychium lunaria]