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Species
Polygonum convolvulus L.
IUCN
NCBI
EOL Text
Distribution: Europe, N. Africa, W. Asia, Himalayas (Pakistan, India, Nepal, Sikkim, Xizang).
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242100055 |
Polygonum convolvulus (wild buckwheat (forb/shrub)) is prey of:
Pogonomyrmex
Based on studies in:
USA: California, Cabrillo Point (Grassland)
This list may not be complete but is based on published studies.
- L. D. Harris and L. Paur, A quantitative food web analysis of a shortgrass community, Technical Report No. 154, Grassland Biome. U.S. International Biological Program (1972), from p. 17.
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Rights holder/Author | Cynthia Sims Parr, Joel Sachs, SPIRE |
Source | http://spire.umbc.edu/fwc/ |
Fallopia convolvulus can be an aggressive weed in crop fields. Rare plants with winged fruiting perianths have been named var. subalata; that characteristic often varies within populations.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242100055 |
Herbs, annual, not rhizomatous, 0.5-1 m. Stems scandent or sprawling, branched proximally, herbaceous, puberulent, sometimes mealy, not glaucous. Leaves: ocrea persistent or deciduous, tan or greenish brown, cylindric, 2-4 mm, margins oblique, face not fringed with reflexed hairs and slender bristles at base, otherwise glabrous or scabrid; petiole 0.5-5 cm, puberulent in lines; blade cordate-ovate, cordate-hastate, or sagittate, 2-6(-15) × 2-5(-10) cm, base cordate, margins wavy, scabrid, apex acuminate, abaxial face usually mealy and, rarely, minutely dotted, not glaucous, adaxial face glabrous. Inflorescences axillary, erect or spreading, spikelike, 2-10(-15) cm, axes puberulent; peduncle 0.1-10 cm or absent, glabrous or scabrid distally in lines. Pedicels ascending or spreading, articulated distally, 1-3 mm, glabrous or, rarely, scabrid. Flowers bisexual, 3-6 per ocreate fascicle; perianth nonaccrescent, greenish white, often with pinkish or purplish base, 3-5 mm including stipelike base, glabrous or outer 3 with blunt, hyaline hairs; tepals elliptic to obovate, apex obtuse to acute, outer 3 obscurely keeled; stamens 8; filaments flattened proximally, glabrous; styles connate distally; stigmas capitate. Achenes included, black, 4-5(-6) × 1.8-2.3 mm, dull, minutely granular-tuberculate, especially on faces; fruiting perianth glabrous or with blunt, hyaline hairs, wings absent or, rarely, flat to undulate, 0.4-0.9 mm wide at maturity, scarcely decurrent on stipelike base, margins entire. 2n = 40.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242100055 |
Flowering May-Oct.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242100055 |
Closely related to Fallopia dumetorum (L.) Holub and F. dentato-alata (F. Schmidt) Holub, however, F. convolvulus (L.) Holub can easily be identified by the absence of coriaceous wings of the nut and much smaller pedicel, which is articulated above the middle. In both the species, F. dumetorum and F. dentatoalata the pedicel is much longer (up to 10 mm long) and articulated above the middle.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242100055 |
2200-3800 m
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=242100055 |
Fl. Per.: May-September.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242100055 |
The foliage and vine-like growth of Black Bindweed has a striking resemblance to the Convolvulus spp. (Bindweeds) and Ipomoea spp. (Morning Glories). However, Black Bindweed is a shorter and less robust vine and its flowers have a dramatically different appearance from the flowers of the preceding species. The Fallopia spp. (Climbing Buckwheats) are vines with a climbing habit, unlike the closely related Persicaria spp. (Smartweeds) and Polygonum spp. (Knotweeds). Unlike Black Bindweed, the other Fallopia spp. that occur in Illinois are robust perennial vines that can become 20' long. Like many Rumex spp. (Docks), their achenes have conspicuous membranous wings, while the keeled achenes of Black Bindweed are without wings. Another scientific name for Black Bindweed is Polygonum convolvulus.
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Rights holder/Author | Copyright © 2002-2014 by Dr. John Hilty |
Source | http://www.illinoiswildflowers.info/weeds/plants/bl_bindweed.htm |
Prostrate or twining annual herb. Stem branched and angular, covered with short hairs, internodes usually short. Leaves petiolate, petiole 6-15 mm long, lamina ovate to oblong ovate or rotund, 15-50 x 7.5-30 mm, acute, with cordate or hastate base, rarely puberulous, glandular; ochrea short, tubular, 3(-3.5) mm long. Flowers 3-6 in axillary fascicles; pedicel shorter than perianth, jointed above the middle. Bracts very short, perianth 5-cleft, tepals green, white margined, 2-2.5 mm long, the outer prominently bluntly-keeled or narrowly winged, slightly accrescent in fruit. Stamens 6-8 with short filaments and dorsifixed anthers. Ovary trigonous, styles 3, very short, stigmas capitate. Nuts dull black to dark brown, 4-5 x 2-2.5 mm, finely granular.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242100055 |