Habit: tree
Taxon group: dicots
Plant: dioecious
Leaf: position: opposite, alternate
Leaf: venation: palmate
Leaf: blade: margin: dentate
Flowers: inflorescence: solitary, fascicle
Flowers: sexuality: unisexual
Flowers: sepal number/calyx lobes: 4
Flowers: petal number/corolla lobes: 0
Flower: bract: present
Flower: pedicel: absent, present
Stamen: number: 10+
Stamen: anthers: basifixed, opening by longitudinal slits
Pistil: carpel: 4, 5, 6+
Fruit: types and characters: a nut (incl. achene, caryopsis, schizocarp, pyrene, etc.)
Fruit: seed: winged
Google Image Search: Link
Dictionary of The Families & Genera of Chinese Seed Plants: Link
Vascular Plant Type Catalog at NYBG: Link
