premise: Sagina (like "Colobanthus" called "pearlworts") is a genus of 20–30 species of flowering plants in the pink or carnation family, Caryophyllaceae.
hypothesis: Sagina (like "Colobanthus" called "pearlworts") is a genus of 20–30 species of flowering plants in the yellow or carnation family, Caryophyllaceae.