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| MaltaWildPlants.com by Stephen Mifsud |
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Rumex cristatus (Crested Dock) |
Rumex cristatus (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 : |
Rumex cristatusDC.
Published in DC., Cat. Pl. Horti Monsp. 139 (1813) | 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) : | Crested Dock, Greek Dock | Maltese name(s) : | Qarsajja kbira | 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 | Frequency : | Very Common Common Frequent
Scarce
Rare Very rare Extinct
| Growth form : |
Raunkiaer lifeform [info]: HEMICRYPTOPHYTE (prostate plants with flowers close to the ground)
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 : | Apr-Sep | Colour of Flowers: | Green or Inconspicuous |
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| Species Description and Distribution |
Habitat in Europe: |
Data will be available in the next update of this website. |
Preferred habitat in Malta: |
Data will be available in the next update of this website. |
Botanical Description: |
Perennial 40-200 cm. Basal leaves 20-30 x 10-15 cm, ovate-lanceolate, with a cordate base, acute at the apex; lateral veins joining the midrib of the leaf at an angle of 60-80°; petiole up to 1/2 as long as the lamina. Valves 5-8 x 5-8 mm, reddish-brown when ripe, cordate, with very small, irregular, acute teeth up to 1 mm; all with unequal tubercles. Nut 3-3.5 mm, dark brown. |
Distributional range: |
Balkan peninsula and E.C. Europe naturalized further west. |
Distributional map in Europe
and the Mediterranean region (2018):
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Occurrences in Europe.
(from Flora Europaea pre year 1993): |
Albania, Bulgaria, Greece, Hungary, ex-Jugoslavia, Romania, Turkey (European part), Introduced in Britain (excl. Northern Ireland and Channel islands), Spain (incl. Andorra but excl. the Balaerics), Italy (excl. Sicily and Sardignia), Portugal, Sicily and/or Malta |
Occurrences in Europe and the Mediterranean region.
(Euro+Med Checklist, 2017) -
Country codes |
? AE Al Bu Cr Cy Gr Mk Si(M S) Tu(A E) Uk(K) [Au(A) aBe(B) nBr nGa(F) Ge He nHs(S) nIt nLu] |
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