This orchid is a terrestrial herb. A cluster of tall stems can be seen rising from an underground rhizome; a single plant may sometimes have over 12 stems, which are highly attractive when in flower (2). The leaves are narrow and hairy and the inflorescence (or flower stalk) may bear up to five flowers, although these tend to come into bloom one after the other (2). The flowers of this orchid are yellow with red marks and the downy petals are incurved, whilst the large lip is sac-like (2).
A small, non-woody, seed bearing plant in which all the aerial parts die back at the end of each growing season.
The reproductive shoot of the plant, which bears flowers (See http://www.rbgkew.org.uk/ksheets/pdfs/flower.pdf for a fact sheet on flower structure).
Rhizomes are thickened, branching, creeping storage stems. Although most rhizomes grow laterally just along or slightly below the soil's surface, some grow several inches deep. Roots grow from the underside of the rhizome, and during the growing season new growth sprouts from buds along the top. A familiar rhizome is the ginger used in cooking.
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