The genuses Paliurus and Jovibarba are what types of plants?
Jovibarba Jovibarba ("beard of Jupiter") is a small genus of three species of succulent flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a subgenus of "Sempervivum", to which it is closely related. "Jovibarba" have pale-greenish-yellow or yellow actinomorphic flowers with about six petals, while "Sempervivum" have generally pinkish flowers with around twice as many petals, which open more widely than jovibarba flowers. The common name hen and chicks is applied to some "Jovibarba" species (and also species in several other genera).
Dalbergia retusa Dalbergia retusa (Caviuna, Cocobolo, Cocobolo Prieto, Funeram, Granadillo, Jacarandáholz, Nambar, ñamba, Nicaraguan Rosewood, Palisander, Palissandro, Palo Negro, Pau Preto, Rosewood, Urauna) is a plant species in the genus "Dalbergia". It is known to produce the wood called cocobolo. It is a fair-sized tree, reported to reach 20–25 m in height. This is probably the species contributing most of the wood in the trade. Because of the wood's great beauty and high value, the trees yielding this wood have been heavily exploited and are now rare outside national parks, reserves, and plantations.