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Cliciwch ar y lluniau am fersiynau mwy
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Eurinllys Pedronglog
Square stalked St. John's Wort
(Hypericum tetrapterum)Teulu'r eurinllys (Clusiaceae)
Enwau eraill :-Erinllys Pedrongl, Eurinllys Pedrongl, Llys Pedr.


Tyfu ymhobman
Blodeuo Gorffennaf-Awst.
Uchder -5cm.

Grows everywhere.
Flowers July - August.
Height 5cm.