( ( ( ( ( These ( low-growing plants ) ) ( ( ( ( ( ( ( do not ) ( have ( true roots ) ) ) , ) leaves ) , ) or ) stems ) ) - ) ( they ( also ( lack ( ( a ( vascular system ) ) ( -LRB- ( ( ( the ( internal tubes ) ) ( ( that ( ( ( transport food ) and ) water ) ) ( in ( ( more advanced ) plants ) ) ) ) -RRB- ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT These) (JJ low-growing) (NNS plants)) (VP (VP (VBP do) (RB not) (VP (VB have) (NP (JJ true) (NNS roots)))) (, ,) (VP (VBZ leaves)) (, ,) (CC or) (VP (VBZ stems)))) (: -) (S (NP (PRP they)) (ADVP (RB also)) (VP (VBP lack) (NP (NP (DT a) (NN vascular) (NN system)) (PRN (-LRB- -LRB-) (NP (NP (DT the) (JJ internal) (NNS tubes)) (NP (NP (DT that) (NX (NX (NN transport) (NN food)) (CC and) (NX (NN water)))) (PP (IN in) (NP (ADJP (RBR more) (JJ advanced)) (NNS plants))))) (-RRB- -RRB-))))) (. .)))
These low-growing plants do not have true roots, leaves, or stems - they also lack a vascular system (the internal tubes that transport food and water in more advanced plants).
(ROOT (S (NP (NNS Stems)) (VP (VBD transport) (NP (NN water)) (PP (TO to) (NP (NP (JJ other) (NNS parts)) (PP (IN of) (NP (DT the) (NN plant))))) (PP (IN through) (NP (NP (DT a) (NN system)) (PP (IN of) (NP (NNS tubes)))))) (. .)))