Candelabra or bushy with few long, irregular branches; to 1.8 m in height.
Cylindrical in cross-section.
Long branches 5-15 mm in diameter (not including calices).
calices tubular, prominent, with lower lip longer than upper one.
Dark brown to black. Calyx tube lighter than the rest of the colony, and polyps with pale brown tentacles.
Polyp armature: robust rods 0.15-0.57 mm and small rods 0.08-0.18 mm; little sclerite bodies and octoradiate forms in tentacles. Axial layer: ornate, lavender or purple spindles, or irregular bodies, to 0.25 mm. Middle layer: robust spindles 0.58-2.66 mm long, 0.08-0.72 in diameter. Surface layer: small foliate and irregular clubs 0.07-0.19 mm long.
Semi-exposed reefs in 10-30 m.
Widespread: Bahamas, Bermuda, South Florida, Gulf of Mexico, and throughout the Caribbean Sea.