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BiologyAn unusual feature of this long-lived perennial (6) orchid is that the flowers at the top of the flower spike open before those further down, this gives the spike a flattened appearance rather than the typical spire shape, (2) although when in full bloom this can be difficult to detect (2). It can take about 7 years after germination for a plant to flower, leaves begin to appear in April, and flowering occurs from May to June. A single plant is known to have flowered every year for 19 years (6). Like all members of this genus, each plant has two oval tubers, which earned the genus the Greek name Orchis, which translates as 'testicle' (1).