To ensure the fertilization, their morphology is well adapted to the proboscis of Lepidoptera, especially Euphydryas, Melanargia, Melitaea, Pieris and Zygaena species.
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The pyramidal orchid, Anacamptis pyramidalis, is a perennial herbaceous plant belonging to the Genus Anacamptis of the family Orchidaceae.
These sites often support many typical chalk downland species such as Common Milkwort (Polygala vulgaris), Field Scabious (Knautia arvensis)and Salad Burnet (Sanguisorba minor) as well as orchids such as Fragrant (Gymnadenia conopsea), Common Spotted (Dactylorhiza fuchsii) and Pyramidal (Anacamptis pyramidalis).
Anacamptis pyramidalis | The Yule Brook Botany Reserve, showing fenceline, fire break, and typical vegetation, including ''Actinostrobus pyramidalis | Pyramidal lobe of thyroid gland (lobus pyramidalis glandulae thyroideae) | Pyramidalis muscle | Anacamptis | Ajuga pyramidalis |