Polygonum hickmanii H.R.Hinds & Rand.Morgan

Hickman's knotweed (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Herbs, compact, often cushion-like. Stems erect, color unknown, simple to profusely branched from near base, not wiry, 2-5 cm, glabrous. Leaves persistence and crowded at brance tips, not articulated to ocreae; ocrea 4-6 mm, glabrous, proximal part cylindric, distal part silvery, disintegrating nearly to base into straight fibers; petiole absent; blade 3-veined, without pleats, linear, 5-35 × 1-1.5 mm, margins revolute, smooth, apex acuminate. Inflorescences axillary; cymes insertion unknown, 1-flowered. Pedicels absent. Flowers closed; perianth 2-3 mm; tube 6-18 % of perianth length, tepals imbrication unknown, white with whitish or pink margins, petaloid, oblong, apex acute, mucronate; midveins unbranched; stamens 8; anthers orange-pink. Achenes enclosed in perianth, olive brown, ovate, 2-2.3 mm, faces subequal, shiny, smooth.
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Growth form herb
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Foliage retention deciduous
Sexuality hermaphrodite
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Cultivation

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Germination duration (days) 21 - 60
Germination temperacture (C°) 21 - 23
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Distribution

Polygonum hickmanii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:303876-2
WFO ID wfo-0001231667
COL ID 785W8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Polygonum hickmanii