Polygonum spergulariiforme Meisn. ex Small

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs. Stems erect, green, divar-icately branched, not wiry, 5-50 cm, usually papillose-scabrid-ulous, rarely glabrescent. Leaves uniformly distributed, articulated to ocreae, basal leaves usually caducous, distal leaves abruptly reduced to bracts, articulated to ocreae; ocrea 8-12 mm, papillose-scabridulous, proximal part cylindric, distal part disintegrating into a few persistent fibers; petiole 0.1-2 mm; blade 1-veined, not pleated, linear to lanceolate, 35-60 × 1-3 mm, margins flat or narrowly revolute, smooth or papillose-denticulate, apex acute, mucronate. Inflorescences axillary and terminal, spikelike, dense; cymes crowded, ± overlapping at branch tips, 2-5-flowered. Pedicels enclosed in or slightly exserted from ocreae, erect to spreading, 0.5-2 mm. Flowers open or semi-open; perianth 3-5 mm; tube 9-17% of perianth length; tepals overlapping, uniformly pink or white, petaloid, oblong-obovate, cucullate, navicular in distal 1/ 4, apex rounded; midveins branched; stamens 8. Achenes enclosed in perianth, black, narrowly elliptic or elliptic-lanceolate to narrowly ovate, 3-5 mm, faces subequal, shiny, smooth to striate-tubercled.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Soil acidity -
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Hardiness (USDA) 4-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 21 - 60
Germination temperacture (C°) 21 - 23
Germination luminosity -
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Optimum temperature (C°) -
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Distribution

Polygonum spergulariiforme world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:206427-2
WFO ID wfo-0001101059
COL ID 4L9ZQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Polygonum spergulariiforme Polygonum douglasii subsp. spergulariiforme