Thallus pendulous 5-25(-40) cm long, soft, uniform pale yellowish-green or whitish, dull or shining, base somewhat indistinct, dichotomously to sympodially branched, axils straight, branches intricate, plicate, corticolous. Branches 0.7 mm thick, thinner at apices, jointed in parts, sometimes fractured, without secondary branchlets, spinules, isidia or soredia. Apothecia rare, on thicker branches, geniculate, sessile, minute, to 2 mm diam., disc plane, greenish, marginal ray-like branchlets few, exciple cupuliform, smooth. Ascospores 12 × 8 µm. Chemistry: Fumarprotocetraric and usnic acids.