Habit: tree, shrub, herb
Important diagnostics: spiny stems or leaves
Taxon group: dicots
Leaf: position: alternate
Leaf: nature: simple
Leaf: stipules: present
Flowers: inflorescence: raceme, spike, umbel, fascicle, cyme, panicle
Flowers: sexuality: bisexual, unisexual
Flowers: symmetry: actinomorphic
Flowers: disc: present
Flowers: sepal number/calyx lobes: 4, 5
Flowers: petal number/corolla lobes: 0, 4, 5
Stamen: number: 4, 5
Stamen: arrangement: antepetalous, same number as petals or sepals
Pistil: style: styles more than 1
Pistil: ovary: 1-loculed, 2-loculed, 3-loculed, 4-loculed
Pistil: ovule: 1 per locule
Ovary: position: superior
Ovary: sessile
Fruit: types and characters: a capsule (incl. pod, follicle, etc.), fleshy (berry, drupe, pome)
Google Image Search: Link
Dictionary of The Families & Genera of Chinese Seed Plants: Link
Vascular Plant Type Catalog at NYBG: Link
