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.
Definition. Carotenoids are fat-soluble plant pigments, some of which are important to human health. The most common carotenoids in the diet of North Americans are alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein, zeaxanthin, and lycopene.arotenoids are highly colored red, orange, and yellow pigments found in many vegetables. A German scientist isolated the first carotenoid in 1826 from carrots and named it beta-carotene. Since then, more than 600 carotenoids have been identified in plants, algae, fungi, and bacteria.