Appearance
It is a small plant, rarely exceeding 20cms in height, with an inflorescence of up to ten diminutive flowers. O. cinereophila is not a hugely variable species though specular patterns can differ quite markedly. The key and most consistent distinguishing feature of this species is the severe geniculation of the lip below the stigmatic cavity. This is then followed by a flat spot before the lip strongly re-curves again, giving the flower a distinctive crescent shaped lateral profile. O. cinereophila is a plant of dry calcereous soils always in full sun, up to an altitude of 750 metres and which first appears in flower as early as February.References:
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