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Pontederiaceae Kunth


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


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