Colenso's description is: "Plant very small, 1/2 in. high, simple, tufted, glabrous; root 2 in. long, slender, hard, white; sometimes 2-4 branches (tufts) rising distantly from one long branched root. Leaves radical, numerous, sub 20, close, spreading, somewhat verticillate, linear-spathulate, 4 lines long (including petiole), 1 line broad, tip rounded very obtuse, with 2 small crenulate serratures on each side, tapering gradually to base, pale-green, shining. Flower large (for plant), solitary, terminal, drooping; scape 1/2 in.-3/4 in. high, very slender, bare. Calyx campanulate, 2 lines long, dark-green, 5-lobed; lobes cut half-way down, linear-acuminate-obtuse, 1-nerved. Corolla 5 lines long, sub 1/2 in. diameter, white, lobes pale-blue, 2-nerved, triangular, subacute, half length corolla. Style flat, 2-nerved, densely minutely tuberculate on each side and upwards to top of stigma; stigmas 2, oblong-lanceolate."
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