Assertion: catalpa's leaf | /r/HasProperty | produced on vigorous young trees
Facets:
value: with glaucous
type: MANNER
value: very
type: DEGREE
Source sentences:
text: cm long with a glossy, dark green upper side and glaucous, light grey-green underside; larger leaves, up to 30 cm long, may be produced on stump sprouts and very vigorous young trees.