Black bootlace orchid
This leafless climbing saprophyte often grows in open sclerophyll forests. It generally grows up tree trunks to about 2m, but will often grow without support to about 30 cm tall.
The flowers of Erythrorchis cassythoides are generally tubular about 2 cm long. A few flowers may be found open as per the photo. The flower when open, is about 25 mm across and highly sweetly fragrant.
This distinctive orchid can only be confused Pseudovanilla foliata which has much larger flowers with a flat (non-tubular) colourful labellum.