1) Caryophylloid dicot genus 2) Genus claytonia 
Claytonia (Spring Beauty) is a genus of 26 species of flowering plants in the family Montiaceae, primarily native to North America, with a few species extending south to Guatemala in Central America, and northwest to northeastern Asia. A number of the species were formerly treated in the related genus Montia. Claytonia perfoliata, the species for ...
• (n.) An American genus of perennial herbs with delicate blossoms; -- sometimes called spring beauty.
Clay·to'ni·a noun [ Named after Dr.John Clayton , an American botanist.] (Botany) An American genus of perennial herbs with delicate blossoms; -- sometimes called spring beauty . 
[n] - genus of mainly North American succulent herbs with white or pink flowers usually in terminal racemes
genus Claytonia noun genus of mainly North American succulent herbs with white or pink flowers usually in terminal racemes
any of the low, succulent plants constituting the genus Claytonia of the purslane family, having basal leaves and long clusters of white or rose-colored flowers.