West Highland Flora

Square-stemmed St John's Wort


Hypericum tetrapterum

 

Hypericum tetrapterum

Photo Carl Farmer
3 Sep 2002 Scorrybreac, Skye

Frequent in wet ground, including roadside ditches and marshland.

Height c 30-60 cm.  Flower diameter c 10-16 mm

ID: Stem square, 4-winged.

Other features: Petals about half as long again as sepals.  Hairless.  Leaves with translucent dots when held against light (as in most Hypericum species).  Leaves similar to H pulchrum but without down-turned edges.  Flowers and leaves both have black dots.

 

Hypericum tetrapterum

Photo Carl Farmer
6 Sep 2003 Scorrybreac, Skye
Open flower c 15 mm across

  Hypericum tetrapterum

Photo Carl Farmer
6 Sep 2003 Scorrybreac, Skye
Open flower c 15 mm across

 

Hypericum tetrapterum

Photo Carl Farmer
5 Sep 2004 Glenhinnisdale, Skye
Open flower c 12 mm across


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