Caladenia denticulata subsp. denticulata, commonly known as the yellow spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two yellowish flowers which have a white labellum with pale red markings.
Caladenia denticulata subsp. denticulata is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf Шаблон:Convert long and Шаблон:Convert wide. One or two flowers are borne on a stem Шаблон:Convert high and each flower is Шаблон:Convert long and Шаблон:Convert wide. The dorsalsepal is erect, Шаблон:Convert long and Шаблон:Convert wide at the base, linear to lance-shaped, pale to greenish-yellow and has a drooping, dark brown, thread-like glandular tip. The arching lateral sepals and petals are similar in size, shape and colour to the dorsal sepal although the petals are slightly narrower and shorter. The labellum is white with pale red markings, and curves forward with white to pale red teeth along its margins, the teeth decreasing in size towards the tip. There are up to 13 pairs of anvil-shaped, cream-coloured calli in two rows along about half the length of the labellum and decreasing in size towards the tip. Flowering occurs between August and early October.[1][2][3]