Nervilia simplex

The tuber is somewhat round to egg-shaped, 1–2 cm (0.4–0.8 inches) across, whitish in colour and sparsely covered with root-knobes, producing only one leaf each year. The leaf measures 2.5 cm (0.98 in) long and 2.5 cm (0.98 in) wide and is kidney-shaped to nearly circular, with shallow rounded teeth and a pointed tip. The base is heart-shaped, and the side facing away from the stem is coloured pale green, while the side facing toward the stem is darker green with fine white branched veins and small sparse bristles. The leaf has 7 main veins. The leaf stalk is erect, about 2 cm (0.79 in) long. The flower stalk is produced from the top of the bulb and is held erect, about 4–5 cm (1.6–2.0 in) long, and is green in colour, bearing one flower. The flower bract is small, egg-shaped to lance-shaped, and pointed. The flowers open widely, twisting as they open, and measure 2–4 cm (0.79–1.57 in) across. The sepals (outer tepals) are yellowish green with faint grey lines, and are narrow, 2–2.5 cm (0.79–0.98 in) long and 0.12–0.25 cm (0.047–0.098 in) wide, with a sharp to tapering point. The petals (inner tepals) are creamy white and narrowly lance-shaped, measuring 1.8–2.3 cm (0.71–0.91 in) long and 0.1–0.2 cm (0.039–0.079 in) wide. The lip of the flower is strongly reflexed above the middle and is also creamy white, with a light purple mid lobe. …

Nervilia simplex is a ground-dwelling plant, growing in open forest floors covered with dry pine needles, at an elevation of 300–1,500 metres (980–4,920 feet). It can be found in the countries India (specifically in the states Andhra Pradesh, Arunachal Pradesh, Goa, Jharkhand, Karnataka, Kerala, Maharashtra, Manipur, Odisha, Sikkim, Tamil Nadu, Uttarakhand and now in Himachal Pradesh), Nepal, China, Indonesia, Malaysia, Philippines, Thailand, Indo-China, New Guinea, Africa, and Australia.