iron oak

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. small deciduous tree of eastern and central United States having dark green lyrate pinnatifid leaves and tough moisture-resistant wood used especially for fence posts
• Syn:
post oak, box white oak, brash oak, Quercus stellata
• Hypernyms:
oak, oak tree
2. medium-sized evergreen of southwestern United States and northwestern Mexico with oblong leathery often spiny-edged leaves
• Syn:
canyon oak, canyon live oak, maul oak, Quercus chrysolepis
• Hypernyms:
live oak