The Collaborative International Dictionary of English v.0.48:

parkleaves \park"leaves`\ (p[aum]rk"l[=e]vz`), n. (Bot.)
   A European species of Saint John's-wort; the tutsan. See
   Tutsan.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tutsan \Tut"san\, n. [F. toutesaine; tout, toute, all (L. totus)
   + sain, saine, sound, healthy, L. sanus.] (Bot.)
   A plant of the genus Hypericum (Hypericum Androsoemum),
   from which a healing ointment is prepared in Spain; -- called
   also parkleaves.
   [1913 Webster]