睡菜科

Habit: herb

Important diagnostics: aquatic plants

Taxon group: dicots

Leaf: position: opposite, alternate, basal

Leaf: nature: simple, ternately compound (3 leaflets)

Leaf: stipules: absent

Flowers: sepal number/calyx lobes: 5

Flowers: sepal position: all free from one another, connate or basally connate

Flowers: petal position: connate or basally connate

Flowers: petal nature: valvate

Corolla: campanulate

Stamen: number: 5

Stamen: arrangement: alternate or antesepalous

Stamen: filaments: free

Pistil: ovary: 1-loculed

Pistil: ovule: 2 per locule

Ovary: position: superior

Fruit: types and characters: a capsule (incl. pod, follicle, etc.)

Fruit: seed: 4+ seeds, winged

Seed: endosperm: seeds with endosperm

Google Image Search: Link

Dictionary of The Families & Genera of Chinese Seed Plants: Link

Vascular Plant Type Catalog at NYBG: Link