MainDescriptionReferences

Tillandsia undulata Baker  diagnose
; 0 leafy stems caespitose, short, ½ - ¾ in; 1 long, all simple. leaves 12 - 20 to a stem, ascending, crowded, ¾ - 1 in; long, subterete, from a clasping lanceolate base, not hair-tipped, densely clothed all over with minute spreading chaffy scales. inflorescence: peduncle 2–3 in; long, bearing 3–4 lanceolate striated clasping bracts; spikes laxly 3–6-flowered; rachis very flexuose; bracts 1/4 in; long, lanceolate, tightly clasping the calyx, thinly lepidote. flowers: calyx ¼ in., naked; sepals lanceolate. fruits glabrous, cylindrical, 1 – 1 ¼ in; long; valves ½ line broad;.

Edited from : Baker 1887b. (protologue) Synopsis of Tillandsieae .