maidenhair spleenwort(n = noun.plant) asplenium trichomanes - small rock-inhabiting fern of northern temperate zone and Hawaii with pinnate fronds;
is a kind of spleenwort

   A small rock-inhabiting fern (Asplenium trichomanes) of the North temperate zone and Hawaii, having pinnate fronds. [WordNet 1.5]

american maidenhair fern, barbados maidenhair, bermuda maidenhair, bermuda maidenhair fern, black spleenwort, black-stem spleenwort, black-stemmed spleenwort, bradley's spleenwort, brittle maidenhair, brittle maidenhair fern, climbing maidenhair, climbing maidenhair fern, common maidenhair, ebony spleenwort, farley maidenhair, farley maidenhair fern, five-fingered maidenhair fern, golden maidenhair, green spleenwort, lanceolate spleenwort, little ebony spleenwort, lobed spleenwort, maidenhair, maidenhair berry, maidenhair fern, maidenhair tree, mountain spleenwort, narrow-leaved spleenwort, scott's spleenwort, silvery spleenwort, southern maidenhair, spleenwort, venus maidenhair, wall rue spleenwort