euphorbia trihedral euphorbia trigona with central trunk and many side branches and young shoots on background of yellow wall

abyssinian african background bark beetle beige botany branch branches cactus cathedral central cropped decorative desert euphorbia facade fast flora fresh green has indoor leaf leaves light lined many medicine milk organic plant plaster poisonous prickle ridge sandy shoots shrub side skin spike stem succulent thorn thorny tree triangular trigona trihedral trunk type unpretentious upright upward vshaped wall which yellow young