West Highland Flora

Spineless Pirri-pirri Bur


Acaena inermis

Older name: Acaena microphylla

Acaena inermis

Photo Carl Farmer
5 Jun 2004 Clachan, Raasay

Very rare but locally plentiful in a few places.  Occurs in short turf and bare ground.  An alien from New Zealand.

Flowerhead diameter c 6-10 mm

ID: Unmistakable

Other features: A creeping plant, forming mats.  Each flower has 4 white petal-like sepals, 2 stamens and 2 feathery styles.  Leaves are pinnate with about 5 pairs of leaflets plus an end one.  Leaflets bluish-grey with purplish-brown edges and veins.

 

Acaena inermis

Photo Carl Farmer
5 Jun 2004 Clachan, Raasay

  Acaena inermis

Photo Carl Farmer
5 Jun 2004 Clachan, Raasay

Flowerheads look rather like Clover among the short grass.
(The downturned flower in the middle is a Daisy)

     

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