Photo: Corylus avellana 21.
Photo: Corylus avellana 20.
Nuts: three stolen (or fallen), one left. Botanical garden Kumpula, Helsinki, Finland. Planted. 2006-09-09.
Photo: Corylus avellana 19.
Next year's male catkins, all ready and green. Botanical garden Kumpula, Helsinki, Finland. Planted. 2006-09-09.
Photo: Corylus avellana 18.
Photo: Corylus avellana 17.
Photo: Corylus avellana 16.
Photo: Corylus avellana 15.
Photo: Corylus avellana 14.
Photo: Corylus avellana 13.
Photo: Corylus avellana 12.
Branch in male (tiny red) and female (yellow catkin) flower. Oulunkylä, Helsinki, Finland. Wild. 2005-04-15.
Photo: Corylus avellana 11.
Flowers, male (hanging, yellow) and female (small, red) Perheniemi, Iitti, Finland. Wild. 2004-04-19.
Photo: Corylus avellana 08.
Photo: Corylus avellana 07.
Male (hanging, yellow) and female (sessile, red) flowers. Oulunkylä, Helsinki, Finland. Wild. 2002-03-31.
Photo: Corylus avellana 06.
Photo: Corylus avellana 00.
Photo: Corylus avellana 04.
Photo: Corylus avellana 02.
Photo: Corylus avellana 01.
Closeup of flowers. The females are those small red tufts, the male is letting it hang and get blown away. Helsinki, Finland. Wild. 2000-05-01.