Picture from: http://www.orchidspecies.com/arundinagraminifolia.htm
Arundina graminifolia
Common Name: Bamboo Orchid, Bird Orchid
Growth Requirements (including habitat): The bamboo orchid is found occuring naturally in lowland secondary forests, right up to higher altitudes in the tropical montane forests. Its natural habitats include open areas, grassland, mountains and rock places by streams. Unlike many epiphytic orchids, which are found growing on trees, this orchid is a terrestrial species.
The bamboo orchid prefers well-drained, moderately moist to moist soil, full sun, high humidity and good air circulation. The soil should also not be allowed to dry out between waterings. In the absence of adequate light, the plant will not flower. The bamboo orchid should be fertilized regularly.
Habit (Herb/Shrub/Treelet/Tree): It is a clumping herb consisting of leafy, erect stems joined at the base, up to 2.5 m tall. Its alternate leaves are grass-like. Its large, 5 by 5 cm flowers develop in shoots at the tips of the stems. Its three sepals and two lateral petals are white to pink. The third petal is modified to a bright rosy purple lip with a central yellow patch. Its fruit is a cigar-shaped capsule that splits to release the tiny, wind-dispersed seeds when ripe.
Uses: It is cultivated as a flower-bed ornamental plant for its pretty flowers.
The bamboo orchid is also consumed as a type of fruit and vegetable. For instance, locals in East Malaysia use a highland variety of the bamboo orchid as a vegetable. Its flowers are first stir-fried, and is said to have a bitter taste, like bittergourd, and is useful in controlling high blood pressure.
 Interesting Information: It’s the only species in the genus.
Websites:
Native plants Garden 