houseplant(n = noun.plant) - any of a variety of plants grown indoors for decorative purposes;
is a kind of flora, plant, plant life
has particulars: aglaonema modestum, chinese evergreen, japanese leaf, anthurium, tail-flower, tailflower, blood berry, bloodberry, rivina humilis, rouge plant, rougeberry, gynura aurantiaca, purple velvet plant, royal velvet plant, velvet plant, exacum affine, persian violet, episcia, gloxinia, kohleria, plectranthus

   any of a variety of plants grown indoors for decorative purposes. [WordNet 1.5]