sessile joyweed (trianthema portulacastrum

difficult reduce weed prostrate plant kill rapidly spreading noxious portulacaceae control spread disease eradicate invasive problem stop eliminate menace impact destroy rid infestation pathogen remove joyweed suppress threat pest minimize prevent succulent damage sessile parasite trianthema portulacastrum manage creeping growth disorder groundcover persistent scourge matforming trailing aggressive nuisance close-up dense carpet plants plants small green leaves reddish tint tiny white flowers background brown soil