Crassulaceae in the context of "Kalanchoe"

Dudleya brittonii, with the common names Britton's dudleya, Britton's liveforever and giant chalk dudleya, is a large succulent plant in the family Crassulaceae, the same genus as jade plants. It is native (possibly endemic) to the coast of northern Baja California, Mexico. Uniquely, Britton’s Dudleya has a green form, or variant of the white form. Both forms of the plant have yellow leaves on a clustered rosette atop a large reddish-purple peduncle. The white form of the plant has a chalky epicuticular wax that reflects light and reacts with water. The green form of the plant is more common and found throughout a wider range. It is among the largest of the Dudleya genus.

Bryophyllum (from the Greek βρῦον/βρύειν bryon/bryein = sprout, φύλλον phyllon = leaf) is a group of plant species of the family Crassulaceae native to Madagascar. It is a section or subgenus within the genus Kalanchoe, and was formerly placed at the level of genus. This section is notable for vegetatively growing small plantlets on the fringes of the leaves; these eventually drop off and root. These plantlets arise from mitosis of meristematic-type tissue in notches in the leaves.

Nowadays, bryophyllums are naturalized in many parts of the tropics and subtropics, and deliberately cultivated for their attractiveness or for their interesting reproduction as a vegetative reproductive plant.