Pontederiaceae Kunth
雨久花科
Habit: herb
Important diagnostics: aquatic plants
Taxon group: monocots
Leaf: position: distichous, rosette
Leaf: other characters: with leaf sheath
Flowers: inflorescence: solitary, raceme, spike, umbel, panicle
Flowers: sexuality: bisexual, unisexual
Flowers: symmetry: zygomorphic
Flowers: perianth number: 6
Flower: bract: present
Stamen: number: 1, 3, 4, 5, 6
Stamen: anthers: introrse, opening by longitudinal slits, 2-celled
Stamen: filaments: free
Pistil: style: style 1, or styles more or less connate
Pistil: ovary: 1-loculed, 3-loculed
Pistil: ovule: 2 per locule, 3 per locule, 4+ per locule
Pistil: pistil: ovules parietal placentation, ovules axillary placentation
Ovary: position: superior
Stigma: 3-cleft
Fruit: types and characters: a capsule (incl. pod, follicle, etc.)
Seed: embryo: straight
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