( ( The flowers ) ( ( are ( wind-pollinated catkins ) ) . ) )
(ROOT (S (NP (DT The) (NNS flowers)) (VP (VBP are) (NP (JJ wind-pollinated) (NNS catkins))) (. .)))
The flowers are wind-pollinated catkins.
(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))) (. .)))