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| MaltaWildPlants.com by Stephen Mifsud |
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Polygonum bellardii (Narrow-leaved Knotgrass) |
Polygonum bellardii (POLYGONACEAE.)
Images for this profile are taken from the Maltese Islands at or after year 2000. |
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| Nomenclature and Basic Information |
Species name : |
Polygonum bellardiiAllioni
Published in All., Fl. Pedem. 2: 207 (1785) | Synonyms : |
Basionym or principal synonym:
Polygonum nudum
Full list of synonyms :
[ Euro+Med ]
[ PlantList ]
[ IPNI ]
[ Catalogue of Life ]
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Plant Family : | Polygonaceae The Dock Family 19 Polygonaceae species recorded from Malta.
Juss. | English name(s) : | Narrow-leaved Knotgrass | Maltese name(s) : | Maltese name not known | Status for Malta : | Naturalised alien species that was introduced in Malta after year 1492 and which can become invasive | Frequency : | Very Common Common Frequent
Scarce Rare
Very Rare Extinct
| Growth form : |
Raunkiaer lifeform [info]: THEROPHYTE (Annuals)
Germination [info]: Dicotyledon | Legal Protection [link]: | Not Protected by Law (LN200/2011 or LN311/2006) | Red List (1989) : | Not listed in the Red Data Book of the Maltese Islands | Flowering Time : | Mar-May | Colour of Flowers: | White or Inc |
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| Species Description and Distribution |
Habitat in Europe: |
Cultivated ground. |
Preferred habitat in Malta: |
Data will be available in the next update of this website. |
Botanical Description: |
Stem 20-100 cm, erect, usually much-branched. Leaves 25-45 mm, linear-lanceolate to elliptic-oblong, caducous. Flowers solitary or in axillary clusters of 2-4, subsessile, forming lax spikes; lower bracts leaf-like, the upper scarious and shorter than the flowers. Perianth 3-5 mm, divided almost to the base; segments greenish, erect. Nut 3-5 mm, glossy, not exceeding the perianth. |
Chromosome number: |
2n=20 |
Distributional range: |
C. & S. Europe, extending northwards to c. 49° N. in France and c. 55° N. in S. Ural. |
Distributional map in Europe
and the Mediterranean region (2018):
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Occurrences in Europe.
(from Flora Europaea pre year 1993): |
Albania, Austria and Liechtenstein, the Balaeric Islands, Bulgaria, Corse, Czeck Republic and Slovakia, France (incl. Monaco and Channel Islands but excluding Corse), Greece, Spain (incl. Andorra but excl. the Balaerics), Hungary, Italy (excl. Sicily and Sardignia), ex-Jugoslavia, Romania, Russia and former USSR, Sardinia, Sicily and/or Malta, Turkey (European part) |
Occurrences in Europe and the Mediterranean region.
(Euro+Med Checklist, 2017) -
Country codes |
Ab(A N) AE Ag Al Ar Au(A) BH Bl(I M) Bu By Cg Co Ct Cy Eg Ga(F) Gg(G) Gr Hs(S) Hu Ir It Jo Le Li Lu Ma Md Mo Rf(C CS E S) Rm Sa dSi(M) Si(S) Sk Sl Sn Sr Sy Tn Tu(A E) Uk(K U) [aBe(B) By aDa aFe aLa Lt Mo aNo Rf(E N NW) aSu Uk(U)] |
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| Images (0 images) | |
No images of Polygonum bellardii are available. If you can share your own images of this species to this website, please do so by using the image upload form below. Credits are given to the authors.
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| Submit further info on this species |
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Use this form to submit more information on this species or report mistakes in this webpage. If information supplied is taken from a book, journal or website, please provide the corresponding reference or website address. Your email address is only for internal communication. Please report only Maltese locations for plants that indicated as rare or very rare (refer to the Nomenclature section). Please do report mistakes, broken links, technical errors, silly typing / grammar errors, misidentifications or taxonomical updates; this will help to improve the website's accuracy. Thanks you! Fill any of the three sections (A/B/C) below and kindly submit the form. * = required fields.
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