Vascular land plants make lignin, a polymer used to strengthen the secondary cell walls of xylem tracheids and vessels to keep them from collapsing when a plant sucks water through them under water stress.
Entikan ring darat sané madaging pembuluh lignin, polimer sané kaanggén ngokohang dinding sel sekunder trakeid miwah pembuluh xilem mangda nénten runtuh rikala jagi nyedot toya ring soring tekanan air.