( ( ( Wind pollinated ) trees ) ( generally ( ( ( flower ( in ( early spring ) ) ) ( before ( leaves ( are present ) ) ) ) . ) ) )
(ROOT (S (NP (ADJP (RB Wind) (VBN pollinated)) (NNS trees)) (ADVP (RB generally)) (VP (VBD flower) (PP (IN in) (NP (JJ early) (NN spring))) (SBAR (IN before) (S (NP (NNS leaves)) (VP (VBP are) (ADJP (JJ present)))))) (. .)))
Wind pollinated trees generally flower in early spring before leaves are present.
(ROOT (S (NP (NP (NNS Flowers)) (VP (VBN pollinated) (PP (IN by) (NP (NN wind))))) (ADVP (RB generally)) (VP (VBP lack) (NP (JJ brightly) (VBN colored) (NNS parts))) (. .)))