Skye Flora

Sea Mouse-ear


Cerastium diffusum

Alternative names: Dark Green Mouse-ear, Cerastium atrovirens

Cerastium diffusum
Flower 7 mm across

Photo © Carl Farmer
24 June 2003 Glenbrittle

Uncommon on sand or stony ground near the sea.

Flower diameter c 5-7 mm

Skye ID: Bracts of inflorescence branches entirely green and leaflike, without pale edges.  Stamens 4-5, petals often 4 (examine several flowers).  Petals equal to or shorter than sepals.  Stems and sepals covered with glandular hairs, but hairs not projecting beyond sepal tip. 

Other features: Annual.  Majority of flowers have 4 sepals, petals, stamens and styles, but some have 5.  Other Skye Mouse-ear species have 5 petals and sepals except in malformed flowers.  Sepals have whitish-transparent edges and tips, difficult to see against petals.  Stems often reddish

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Cerastium diffusum

Photo © Carl Farmer
24 June 2003 Glenbrittle

 

Cerastium diffusum
Capsule 9 mm long

Photo © Carl Farmer
24 June 2003 Glenbrittle

  Cerastium diffusum

Photo © Carl Farmer
24 June 2003 Glenbrittle

 

Above: gland-tipped hairs
clearly visible

Left: fruit-capsule; this one
was atypically long, and looks
even longer owing to the
"invisible" sepal-tips


Cerastium diffusum

Photo © Carl Farmer
(27 Apr 2003 Handa Island)
 

In this picture the white edges and tips of the sepals are almost impossible to see against the white petals.


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