( ( ( The ( seed ( , ( germination ( , ( and seedling ) ) ) ) ) ) ( of Yucca ) ) . )
(ROOT (NP (NP (DT The) (NN seed) (, ,) (NN germination) (, ,) (CC and) (NN seedling)) (PP (IN of) (NP (NNP Yucca))) (. .)))
The seed, germination, and seedling of Yucca.
(ROOT (S (NP (NN Seed)) (ADVP (RB dormancy)) (VP (VBZ ensures) (SBAR (IN that) (S (NP (NNS seeds)) (VP (VBP germinate) (ADVP (RB only)) (SBAR (WHADVP (WRB when)) (S (NP (NP (NNS conditions)) (PP (IN for) (NP (JJ seedling) (NN survival)))) (VP (VBP are) (ADJP (JJ optimal))))))))) (. .)))