Collinsia heterophylla (syn.C. bicolor) is a flowering plant native to California and Baja California. It is known as Purple Chinese Houses or Innocence. Like other species in the genus Collinsia, which also includes the blue-eyed Marys, it gets its name from its towers of inflorescences of decreasing diameter, which give the plants in full flower a certain resemblance to a pagoda.
Purple Chinese Houses is an annual plant growing in shady places, and can be found in most of California (other than desert regions) below about 1,000 metres (3,300 ft). It blooms from mid spring to early summer. The plant is 10–50 centimetres (4–20 in) tall.