21. Poinsettias are members of the euphorbia or spurge family, which all have milky sap. 22. A : Crotons ( Codiaeum variegatum ) are highly ornamental members of the euphorbia family. 23. "Euphorbia tithymaloides " is native to subtropical North America and Central America. 24. "Euphorbia tithymaloides " was introduced as a garden plant prior to 1688. 25. They live in coastal euphorbia scrub, and are most active at dawn and dusk. 26. As euphorbia seeds have a limited shelf-life, they are rarely offered commercially. 27. Genus Euphorbia is known for its large composition of succulent plants that are universally perennial. 28. There are 2, 000 species of Euphorbia , which is part of the Euphorbiaceae family. 29. It was described by Rauh & Razafindratsira . in Euphorbia Journal 7 : 31.1991. 30. A . Crown of thorns ( Euphorbia milii ) is a spiny succulent that blooms almost constantly.
