the flowers of euphorbia antiquarum

year wildflower upper triangular tree top three thin thick teeth tall stems spherical smooth small shrub shape seeds round ridges resembling raised produce plant petal period nature multiple meters markings like leaves leather leaf lasts invertebrate insect inconspicuous huoyanggui high herb green genus fruiting fruit food flowers flowering flower fleshy flattened family evergreen euphorbiaceae euphorbia garden popular science knowledge botany biology