Reynoutria Houtt.

Genus

Angiosperms > Caryophyllales > Polygonaceae

Characteristics

Large dioecious perennial herbs with stout stems, often forming clumps or thickets, with ± woody rhizomes; nodes jointed; ochreae large. Lvs cauline, broadly ovate to oblong, large; base usually truncate to cordate. Fls in axillary panicles, with rudiments of opposite sex. Perianth segments 5, accrescent, ± white, free, subequal, the outer 3 keeled and becoming winged. Stamens 8. Styles rather short, 2-3; stigmas lobed and ± fimbriate. Fr. a trigonous nut with obtuse or acute angles, spineless.
More
Herbs perennial, dioecious. Rhizomes thickened. Stems erect, stout, hollow. Leaves simple, alternate, petiolate; leaf blade ovate or ovate-elliptic, margin entire; ocrea oblique. Inflorescence axillary, paniculate. Flowers unisexual. Perianth persistent, 5-parted; outer 3 tepals accrescent and winged on abaxial surface in female flowers. Stamens 8. Styles 3; stigmas fimbriate. Achenes ovoid, trigonous.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality dioecy
Pollination -
Spread -
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Root system rhizome
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Usage

Uses medicinal
Edible -
Therapeutic use Diuretic (unspecified), Stomachic (unspecified), Emmenagogue (unspecified), Food (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
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Images

Reynoutria unspecified picture

Distribution

Reynoutria world distribution map, present in China and New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:30017840-2
WFO ID wfo-4000032814
COL ID 77ZF
BDTFX ID 87106
INPN ID 197091
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Tiniaria Reynoutria

Lower taxons

Reynoutria forbesii Reynoutria multiflora Reynoutria japonica Reynoutria x bohemica Reynoutria spaethii Reynoutria ciliinervis Reynoutria sachalinensis