the euphorbia tirucalli tree

young yellow wildflower wide upper undefined twig triangular tree top tirucalli tiny thorns tall stalk spherical smooth small shrub shield shaped shape seed science round red produce popular plant pink petal period oval old october nature mound millimeters milk meters meadow long linear light length leaves leaf knowledge july inflorescence high herb hairy hairless gyro green gray grass glands genus garden fruiting flowering flower fleshy euphorbia branch botany blossom biology