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Urticaceae Jussieu

荨麻科

Urticaceae
Boehmeria nivea

Credit: Xiangying Wen

Habit: tree, shrub, herb

Important diagnostics: spiny stems or leaves, cystoliths present, succulent

Hairs: stinging

Taxon group: dicots

Stem: climbing/twining

Leaf: position: opposite, alternate

Leaf: nature: simple

Leaf: stipules: absent, present

Flowers: inflorescence: solitary, raceme, spike, head, cyme, panicle

Flowers: sexuality: bisexual, unisexual

Flowers: symmetry: actinomorphic

Flowers: perianth number: 4, 5

Flowers: sepal number/calyx lobes: 0

Stamen: arrangement: antepetalous, same number as petals or sepals

Stamen: anthers: 2-celled

Stamen: other characters: staminodia present

Pistil: style: absent, style 1, or styles more or less connate

Pistil: carpel: 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

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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