Habit: tree
Important diagnostics: spiny stems or leaves
Taxon group: dicots
Leaf: position: alternate
Leaf: nature: simple, palmately compound
Leaf: venation: pinnate
Leaf: blade: margin: entire
Leaf: stipules: present
Flowers: inflorescence: solitary, fascicle
Flowers: sexuality: bisexual
Flowers: symmetry: actinomorphic
Flowers: sepal number/calyx lobes: 3, 4, 5
Flowers: petal nature: imbricate
Flowers: corona: present
Stamen: number: 5, 6, 7, 8, 9, 10+
Stamen: anthers: 1-celled at anthesis, 2-celled, 3-celled, 4+ -celled
Stamen: filaments: free, connate into 1 tube or bundle
Pistil: style: style 1, or styles more or less connate
Pistil: ovary: 2-loculed, 3-loculed, 4-loculed, 5-loculed
Pistil: ovule: 2 per locule, 3 per locule, 4+ per locule
Pistil: pistil: ovules attached to the central axis
Ovary: position: superior
Fruit: types and characters: a capsule (incl. pod, follicle, etc.)
Google Image Search: Link
Dictionary of The Families & Genera of Chinese Seed Plants: Link
Vascular Plant Type Catalog at NYBG: Link