The Collaborative International Dictionary of English v.0.48:

maiden blue-eyed mary \maiden blue-eyed mary\ n.
   A small widely branching Western wildflower (Collinsia
   parviflora) with tiny blue-and-white flowers; found from
   British Columbia to Ontaria and south to California and
   Colorado.
   [WordNet 1.5] maidenhair

WordNet (r) 3.0 (2006):

Collinsia parviflora
    n 1: small widely branching western plant with tiny blue-and-
         white flowers; British Columbia to Ontario and south to
         California and Colorado [syn: maiden blue-eyed Mary,
         Collinsia parviflora]