That's a nice form of Arundina graminifolia,Randy. This orchid is very common in Peninsular Malaysia and throughout South-east Asia and grows from the lowlands to about 2000m altitude.One will be able to see hordes of this orchid, with their very attractive, cattleya-like flowers, on the embankments and cuttings by the roadside on any drive up to the hill stations in Malaysia.
They are grown in many gardens right out in the open, exposed to the sun.
The one you have is most probably a lowland type. I am trying to grow one in my garden. Hope it adapts to the lowland conditions. A friend of mine has a clump growing in his garden and he has blooms non-stop the whole year round.