Self-fertilizing
Guides
Collinsia
Blue-eyed Marys, Chinese houses
Collinsia is a genus of approximately 20 species of annual herbaceous flowering plants in the family Plantaginaceae. The genus includes two informal groups: the blue-eyed Marys and the Chinese houses. Species are endemic to North America, with particularly high diversity in California. The genus was historically classified in Scrophulariaceae but reassigned to Plantaginaceae based on molecular genetic research. Collinsia species are winter annuals that germinate with winter rains and complete their life cycle within a single growing season.