Populus tremula L.
(Aspen)

Taxonomic hierarchy:
SpeciesPopulus tremula (Aspen)
GenusPopulus (poplars)
FamilySALICACEAE (poplars and willows)
OrderMALPIGHIALES (poplars, willows, St John’s worts, spurges and violets)
SubclassEU-DICOTS (dicotyledonous flowering plants)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Populus tremula (Aspen) :
1: Populus tremula (Aspen)
12 Jun 2008 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
tree
Image 1: CanopyImage 2: Canopy and trunkImage 3: Canopy top
2: Populus tremula (Aspen)
14 Jul 2001 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Image 1: Leaf spray - top surfaceImage 2: Leaf spray - under surfaceImage 3: Leaf - top surfaceImage 4: Leaf - top surface - enlargedImage 5: Leaf - under surfaceImage 6: Leaf - under surface - enlargedImage 7: Leaves
3: Populus tremula (Aspen)
20 May 2001 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Image 1: Trees - newly in leafImage 2: Trees - newly in leaf (2)
4: Populus tremula (Aspen)
29 May 1999 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Image 1: Leaf base - upperside - close-upImage 2: Leaf base - underside - close-upImage 3: Leaf blade - uppersideImage 4: Leaf sprayImage 5: Leaf tip - uppersideImage 6: Leaf tip - upperside - close-upImage 7: Leaf - uppersideImage 8: Leaf - undersideImage 9: Leaf - underside - close-up
5: Populus tremula (Aspen)
31 Jan 1999 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Image 1: Pollen
6: Populus tremula (Aspen)
15 Feb 1998 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Catkins just opening
Image 1: Male catkin - close-upImage 2: Male catkinsImage 3: Male catkins (2)Image 4: Male flowersImage 5: Male flowers (2)
7: Populus tremula (Aspen)
31 Jan 1998 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Catkin buds just bursting
Image 1: BudsImage 2: Catkin buds burstingImage 3: Catkin buds bursting (2)Image 4: Catkin bursting from budImage 5: Catkins just burstingImage 6: Catkins just bursting (2)Image 7: Winter twigs

Identification Works

AuthorYearTitleSource
Cosgrove, P. et al 2005 Aspen - Britain’s missing link with the boreal forest British Wildlife Vol 17, No 2: 107-115.

Populus tremula (Aspen) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Populus tremula (Aspen)
BioInfoBioInfo (www.bioinfo.org.uk) has 138 host/parasite/foodplant and/or other relationships for Populus tremula (Aspen)
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