Collinsia bicolor. - Two-colored Collinsia. - A beautiful hardy annual, with white and light-purple flowers, which are numerous and pretty in June and July; one foot high.
C. graiidijiora. - Large-flowering Collinsia. - This is another beautiful species, with large flowers, blue and purple; flowering at the same time, and about the same height, bat more spreading. Both species are suitable to be planted in masses. Foliage delicate.