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Alder |
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Alnus glutinosa |
![]() Photo ©
Carl Farmer |
Frequent in woods and scrub and beside burns Tree c 10-30 m tall. Leaves c 3-9 cm long on stalk c 1-3 cm. Male catkins c 1-6 cm, female cones c 0.5-3 cm. Skye ID: Purple buds (see pic below) diagnostic. The cones (2nd pic below) are also unique to this tree. Can be id'd from leaves as follows: leaves toothed, about as long as broad, many of them with a shallow notch at the tip, the others flat there. Other features: Twigs have stalked side-buds. Male and female catkins present all winter, opening in Feb-Mar. The male ones then drop off but the female ripen into cones which release the seeds in autumn but may remain on the tree for much longer. |

Photo ©
Carl Farmer
18 Oct 2003 Portree
Underside of leaves and characteristic purple bud
![]() Photo ©
Carl Farmer |
| Female cones, with one male catkin and several female
catkins (small, round, further back on same twig as male) |
![]() Photo ©
Carl Farmer Silhouette in Autumn shows catkins and cones |
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Photo © Carl Farmer Spring catkins |