Polygonum mexicanum Small

Species

Angiosperms > Caryophyllales > Polygonaceae > Polygonum

Characteristics

Rather robust annuals, glabrous below, upwardly becoming glandular-hairy, sometimes decumbent and rooting at the lowermost nodes. Leaves conspicuously punctate, essentially glabrous except for the strigillose margins, apically long-attenuate, the bases gradually decurrent on petioles up to 1 cm. long; blades linear to lanceolate, falcate, 6-15 cm. long, 0.5-2.0 cm. broad; ochreae 0.5-1.5 cm. long, eciliate, glabrous. Inflorescences of terminal subspicate racemes or panicles, the peduncles glandular and strigose; floriferous portions continuous, 1-6 cm. long, 5-8 mm. broad, the flowers fasciculate in eciliate imbricate ochreolae 2-3 mm. long. Flowers pink, the pedicels distally articulated and mostly included in the ochreolae; tepals 4-5, subequal, ovate, becoming 2-3 mm. long; stamens 6-8, discrete, difficultly separable from the tepals; filaments filiform or flattened, 1-2.5 mm. long; anthers less than 0.5 mm. in diameter, subrotund, versatile, thus appear-ing peltate; ovary lenticular; styles 2, about 2 mm. long, connate for about 1 mm.; stigmata capitate. Achenes lenticular, orbiculate, the beak not prominent, brown to black, dull, 2-3 mm. long, 2-3 mm. broad.
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 -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 60
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Polygonum mexicanum world distribution map, present in Panama

Identifiers

LSID urn:lsid:ipni.org:names:206299-2
WFO ID wfo-0001101131
COL ID 4L9MY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Polygonum mexicanum