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Based on N. E. Brown's description.
Aerial branches, spreading or ascending, 3 - 10 inches long, 1/2 - 3/4 inch thick, rooting, covered on the lower part with a very acute or spine-tipped white-edged green scales or sheaths 3/4 - 1 1/2 inches long, which gradually pass into the leaves on the apical part. Leaves 7 - 18 to a growth, usually irregularly directed, but sometimes more or less two ranked, both arrangements occasionally occurring on the same stem, ascending or spreading, rough throughout or smooth at the basal part and rough above, 1/2 - 2 feet long, 1/2 - 3/4 inch thick, cylindric, sheathing at the base and usually with a concave channel extending from the sheath 1/4 - 1/2 way up the leaf, gradually tapering to a very acute hard spine-like brown point 1 1/2 - 2 inches long, dark green, faintly banded with paler green when young, and marked with darker green continuous and interrupted longitudinal lines, which with age or on shriveled leaves become impressed, forming slight furrows. |
