胡麻科

Habit: shrub, herb

Important diagnostics: aquatic plants

Taxon group: dicots

Leaf: position: opposite, alternate

Leaf: stipules: absent

Flowers: inflorescence: solitary, raceme

Flowers: sexuality: bisexual

Flowers: symmetry: zygomorphic

Flowers: disc: present

Flowers: sepal number/calyx lobes: 4, 5

Flowers: petal number/corolla lobes: 5

Flowers: petal nature: imbricate

Corolla: tubular, labiate

Stamen: number: 2, 4

Stamen: arrangement: didynamous

Stamen: anthers: opening by longitudinal slits, 2-celled

Stamen: other characters: staminodia present

Pistil: ovary: 2-loculed, 3-loculed, 4-loculed

Pistil: ovule: 2 per locule, 3 per locule, 4+ per locule

Pistil: pistil: ovules axillary placentation

Ovary: position: superior, inferior

Stigma: 2-cleft

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

Fruit: seed: 1 seed, 2 seeds, 3 seeds, 4+ seeds

Seed: endosperm: seeds without endosperm

Google Image Search: Link

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

Vascular Plant Type Catalog at NYBG: Link