Young bracken frond

Young bracken frond

Observation - Young bracken frond. Description: The young bracken frond has something of the appearance of an eagle which is presumably the origin of the name 'aquilinum'. The reddish-brown colour of the tip of the frond is caused by cinnamon coloured hairs. Bracken has extrafloral nectaries that secre

The young bracken frond has something of the appearance of an eagle which is presumably the origin of the name 'aquilinum'. The reddish-brown colour of the tip of the frond is caused by cinnamon coloured hairs. Bracken has extrafloral nectaries that secrete sugars and amino acids; they are visible as green 'bumps' in the second image. They were first described by Darwin in 1877 and their function may be to attract ants that perform a protective function.