Collinsia verna, or blue-eyed Mary, is a winter annual that is native to the eastern and central parts of North America but has become endangered in the states of New York and Tennessee.

Collinsia verna is native to Ontario, New York, south to Virginia, southwest to Tennessee and Oklahoma, and north to Kansas, Iowa, and Wisconsin.

It is also present in a multitude of other places filling the eastern states of the U.S.[2][3] Collinsia verna is often found in areas of damp open wood as it requires ample amounts of shade.

The middle leaves are the largest, they range from being oval to broadly lanceolate, usually with a few blunt edges along their margins, and their bases are either sessile or clasp the stem.

(Susan Kalisz, 1999) It was concluded that autogamy indeed did occur late in floral development which raises its potential for reproductive assurance, and that individual flowers varied in their ability to set fruit through this mechanism.