This erect native perennial grows 1-3 feet tall, often in clumps (C). The alternate, unstalked, oval leaves, 2-4 inches long have smooth margins and prominent veins (A). Abundant stiff, white hairs impart a grayish-green color to the leaves and stem. At the end of the stems are several unique drooping tubular flowers about 1/2 inch long with greenish white to white, hairy, pointed, closed petals through which a single style protrudes (B). The fruit is a very hard, shiny nutlet (D) responsible for the common name “Marbleseed.”