Persicaria hydropiper (L.) Delarbre
(Water-pepper)

Taxonomic hierarchy:
SpeciesPersicaria hydropiper (Water-pepper)
GenusPersicaria (knotweeds)
FamilyPOLYGONACEAE (docks and knotgrasses)
OrderCARYOPHYLLALES (pinks, goosefoots and docks)
SubclassEU-DICOTS (dicotyledonous flowering plants)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Persicaria hydropiper (Water-pepper) :
1: Persicaria hydropiper (Water-pepper)
30 Aug 2008 OSGR: SU57 51° 30’ N, 1° 20’ W Vice County: Berks (VC 22) England
in flower, trooping in muddy patch in woodland path
Image 1: Flowering shoot - close-upImage 2: Flowering shoots - close-upImage 3: Flowering shoots - close-up - white backgroundImage 4: Leaves - top and under surfacesImage 5: Plant - close-upImage 6: Plant - close-up - white backgroundImage 7: Plants - in situImage 8: Plants - in situ (2)Image 9: Plants - in situ (3)Image 10: Plants - in situ (4)Image 11: Shoot - close-upImage 12: Flowers - close-up - enlarged - white backgroundImage 13: Flowers - close-up - enlarged - white background (2)Image 14: Flowers - close-up - enlarged - white background (3)Image 15: Nutlets - highly enlarged - white backgroundImage 16: Nutlets - highly enlarged - white background (2)Image 17: Ochrea - front view - close-up - enlarged - white backgroundImage 18: Ochrea - front view - close-up - enlarged - white background (2)Image 19: Ochrea - side view - close-up - enlarged - white backgroundImage 20: Ochrea - side view - close-up - enlarged - white background (2)
2: Persicaria hydropiper (Water-pepper)
28 Aug 1999 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Image 1: Flower spike - tipImage 2: Fruit - ripeImage 3: Fruit - ripeningImage 4: Lateral flower spikeImage 5: Leaf base - upperside - close-upImage 6: Leaf tip - upperside - close-upImage 7: Leaf - uppersideImage 8: Leaf - upperside - close-upImage 9: Leaf - undersideImage 10: Leaf - underside - close-upImage 11: Leaf - yuppersideImage 12: Nutlet - lenticular - highly enlargedImage 13: Nutlet - surface ornamentation - highly enlargedImage 14: Nutlet - trigonous - highly enlargedImage 15: Nutlet - trigonous - highly enlarged (2)Image 16: Ochrea at leaf baseImage 17: PlantImage 18: Plant - apex

Persicaria hydropiper (Water-pepper) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Persicaria hydropiper (Water-pepper)
BioInfoBioInfo (www.bioinfo.org.uk) has 8 host/parasite/foodplant and/or other relationships for Persicaria hydropiper (Water-pepper)
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