Claim: The Colobanthus is in the kingdom Plantae and is part of the Caryophyllaceae genus; it is native to a cold continent on Earth.
Evidence: Colobanthus is a large genus of small, cushion-like herbaceous plants in the family Caryophyllaceae, sometimes known as "pearlworts", a name they share with plants of the related genus Sagina. Kingdom: Plantae Order: Caryophyllales Genus: Colobanthus
Bartl. C. quitensis is the world's southernmost dicot, and one of only two native extant flowering plants of Antarctica.