Dendrobium Sw.
Pseudobulbs elongate, jointed (Fig. 44). Labellum 3-lobed Dendrobium
Leaves long, terete succulent circular in cross section or ± flattened. Flowers not resupinate (i.e. labellum uppermost in flower)
Leaves smooth, pendulous, 10–70 cm long. Stems up to 2 m long. Racemes lateral or from the bases of the leaves, many-flowered. Pencil Orchids
Perianth white cream or yellowish, 5–6 cm diam; the labellum sometimes dotted or striped with red. Leaves mostly c. 5 mm diam., 10–50 cm long. On trees (usually Casuarinaceae). Fl. July–Oct. Rats-tail Orchid Dendrobium teretifolium
Perianth greenish or the base striated with red or purple-brown, 6–10 cm diam. Leaves mostly 4 mm diam., 10–70 cm long. Blue Mts; lower Hunter River Valley. RF. Fl. Aug.–Oct. Dendrobium fairfaxii