| Records of Frangula alnus (Alder Buckthorn, Black Dogwood) : | ||||
| 1: Frangula alnus (Alder Buckthorn, Black Dogwood) | ||||
| 16 Sep 2002 | OSGR: SU91 | 50° 60’ N, 0° 40’ W | Vice County: West Sussex (VC 13) | England |
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| Records of Frangula alnus (Alder Buckthorn, Black Dogwood) : | ||||
| 1: Frangula alnus (Alder Buckthorn, Black Dogwood) | ||||
| 16 Sep 2002 | OSGR: SU91 | 50° 60’ N, 0° 40’ W | Vice County: West Sussex (VC 13) | England |
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Frangula alnus (Alder Buckthorn, Black Dogwood) may be included in identification literature listed under the following higher taxa:
 NBN (data.nbn.org.uk)
has a distribution map for Frangula alnus (Alder Buckthorn, Black Dogwood)
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 BioInfo (www.bioinfo.org.uk)
has 22 host/parasite/foodplant and/or other relationships for Frangula alnus (Alder Buckthorn, Black Dogwood)
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Beware Amelanchier lamarckii (Juneberry) which can be naturalised in the same habitat in southern England.
Flowers and fruits of Buckthorns are axillary, forming a characteristic cluster a little way back from the tip of the branch whereas Juneberry has loose terminal raceme.
Vegetative specimens can be distinguished by the short petioles (less than 1cm) of Alder Buckthorn compared to the longer ones (up to 2cm) of Juneberry. Furthermore, the leaf edge is completely smooth in Alder Buckthorn whereas it is denticulate in Juneberry.
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