West Highland Flora

Twisted Whitlow-grass


Draba incana

Other name: Hoary Whitlow-grass

Draba incana

Photo Carl Farmer
13 Jul 2004 Trotternish Ridge, Skye
Inflorescence c 13 mm high as shown

Widespread but scarce, on alkaline rock at any altitude but most frequent in the uplands.

Flower diameter c 3-5 mm.

ID: Unmistakable if the twisted fruits are visible (note that young fruits or those on dwarf plants may not be twisted).  Otherwise told from any similar crucifers apart from D norvegica by the slightly notched petals.  Told from D norvegica by having many stem-leaves (D norv has 0-2) and the stem-leaves having a few large forward-pointing distant teeth (untoothed in D norv)

Other features: Densely hairy all over, some of the hairs branched.

 

Draba incana

Photo Carl Farmer
13 Jul 2004 Trotternish Ridge, Skye
Inflorescence c 13 mm from top to bottom

  Draba incana

Photo Carl Farmer
11 Jul 2004 Storr, Skye
Pod in mid pic c 12 mm long

 

Draba incana

Photo Carl Farmer
11 Jul 2004 Storr, Skye
Left hand leaf c 8 mm across at widest


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