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Polygonaceae A. L. Jussieu

蓼科

Polygonaceae
Polygonum virginianum

Credit: Xiangying Wen

Habit: tree, shrub, herb, liana

Taxon group: dicots

Stem: nodose, climbing/twining, prostrate

Plant: monoecious, dioecious

Leaf: position: opposite, alternate, verticillate/whorled

Leaf: nature: simple

Leaf: blade: margin: entire

Leaf: stipules: absent, present, stem-clasping, with stipular sheath

Flowers: inflorescence: raceme, spike, head, panicle

Flowers: sexuality: bisexual, unisexual

Flowers: symmetry: actinomorphic

Flowers: perianth number: 3, 4, 5, 6

Flowers: petal number/corolla lobes: 3

Stamen: number: 3, 4, 5, 6, 7, 8, 9, 10+

Stamen: arrangement: antepetalous

Stamen: anthers: 2-celled

Stamen: filaments: free, connate into 1 tube or bundle

Pistil: style: styles more than 1

Pistil: ovary: 1-loculed

Pistil: ovule: 1 per locule

Ovary: position: superior

Fruit: types and characters: a nut (incl. achene, caryopsis, schizocarp, pyrene, etc.)

Fruit: seed: 1 seed

Seed: embryo: straight, curved

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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