Growing Yuccas in Zone 5. The slightly dangerous looking Yucca is a large group of sun-loving plants. There are tall specimens, such as Joshua tree, and ground hugging little plants, like Adamâs Needle. Most are found in regions with little rain, plenty of sunshine and hot days.
Definition of CAROTENE. : any of several orange or red crystalline hydrocarbon pigments (as C40H56) that occur in the chromoplasts of plants and in the fatty tissues of plant-eating animals and are convertible to vitamin A â compare beta-carotene.See carotene defined for kids. ADVERTISEMENT. any of several orange or red crystalline hydrocarbon pigments (as C40H56) that occur in the chromoplasts of plants and in the fatty tissues of plant-eating animals and are convertible to vitamin A â compare beta-carotene. See carotene defined for kids. ADVERTISEMENT.
Medical Definition of CAROTENOID. : any of various usually yellow to red pigments (as carotenes) found widely in plants and animals and characterized chemically by a long aliphatic polyene chain composed of eight isoprene units.â carotenoid adjective.efinition of CAROTENOID. : any of various usually yellow to red pigments (as carotenes) found widely in plants and animals and characterized chemically by a long aliphatic polyene chain composed of eight isoprene units. â carotenoid adjective.