Crassula perfoliata L. var. minor (Haw.) G.D. Rowley
Crassula falcata Wendl.
Propellor plant, propeller plant
Propellor plants are natives of southern South Africa, not found in the wild in North America. The common name refers to the leaves, which are shaped like the blades of a propellor.
Identification: These plants have grayish green leaves and grow to about 12" (30 cm) tall (not counting the flower stalk). Leaves are succulent (thickened to store water), sickle-shaped, up to 3½" (9 cm) x 1" (2.8 cm) in size. They are often spotted or edged with red, and are edged with very small teeth. Flowers appear on a stalk about 20" (50 cm) in height, branching into a rounded or flat-topped flowerhead. Flowers range from bright red to nearly white, described by one source as a “bright red broccoli cluster.” Individual flowers are up to ¼" (7 mm) long.
Crassula perfoliata var. minor on pza.sanbi.org
Crassula perfoliata var. minor on Cactus Art: the World of Cacti & Succulents
Crassula perfoliata var. minor on xericworld.com
Crassula perfoliata var. minor on Wikimedia Commons
Crassula perfoliata var. minor description by Thomas H. Kent, last updated 25 May 2020.