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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 syn.) |
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Plant Family : | Polygonaceae
Juss. (The Dock Family)
19 species from the Polygonaceae family are recorded from the Maltese Islands. | English name(s) : | Narrow-leaved Knotgrass | Maltese name(s) : | Maltese name not known | Status for Malta : | Species that was introduced in Malta after year 1492 and spreads to form established, non-invasive populations. It may become become invasive if it widespreads rapidly. | 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 Inconspicuous |
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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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