Plant 1–4 m. tall in flower, erect, suckering from the base. Stem short, hollow, soft. Rosette-leaves sessile, 20–35 cm. long, 2–4 cm. wide, linear-lanceolate, acute at the apex, ± puberulous or glabrescent on both sides, sometimes villous towards the base; margin ciliate, entire; venation protruding beneath with lateral veins spreading at an acute angle and richly anastomosing. Inflorescence unbranched, dense, often starting practically from ground-level; pedicels ± 5 mm. long, glabrous or villous; bracts drooping, narrowly linear, 10–20(–25) cm. long, long-acuminate at the apex, long-ciliate to pubescent on the margin, otherwise sparsely villous to subglabrous; bracteoles inserted at the base of the pedicel, minute. Hypanthium subcylindric, 10-nerved, glabrous or villous. Calyx-lobes linear-acuminate, 7–13 mm. long, entire, long-ciliate. Corolla 14–18 mm. long, greenish blue, pale blue or purplish, split to the base on the back, ± pubescent outside, subglabrous on the inside of the tube; lobes linear, the lateral ones somewhat more deeply split than the middle ones. Filaments connate for most of their length and forming a firm tube, ciliate below, free from the corolla. Anther-tube ± 5 mm. long, glabrous on the back; 2 lower anthers barbate at the apex. Ovary subinferior. Capsule broadly cylindric, 10–15 mm. long with 2 distinct valves. Seeds broadly elliptic in outline, somewhat compressed, ± 0.7 mm. long, almost smooth, brown.
HAB. Upland grassland and moor to the snow-line; 2950–4550 m.
Kenya Aberdare Mts., Kinangop, N. slope, 13 July 1948. Hedberg 1548!
Kenya Mt. Kenya, Nanyuki–Chogoria [Chagoria] track, 19 June 1943, Moreau 155!
Uganda Mt. Elgon, from just below Madangi to foot of Jackson’s summit, 1930, Liebenberg 1617! & without precise locality, 6 Sept. 1932, A.S. Thomas 629! & Top Camp, 12 Nov. 1933, Tothill 2412!
Kenya Elgon, E. slope of Koitobos, 10 May 1948, Hedberg 861!
in von Höhnel, Zum Rudolf- und Stephanie- See: 861, t. 104 (1892); Bak. f. in J.B. 32: 68 (1894); P.O.A. C: 401 (1895), pro parte; R.E. & T.C.E. Fries in Svensk Bot. Tidskr. 16: 415, fig. 1, 8/a-c (1922); R.E. Fries in Karsten & Schenck, Veget. Bild. 16: 38/A (1925); E.A. Bruce in K.B. 1934: 86, t. 5/6 (1934); T.S.K.: 154 (1936); E. Wimmer in E.P. IV. 276 b: 674 (1953); A.V.P.: 192, fig. 12/A, B, 13/C (1957); E. Wimmer in E.P. IV. 276 c: 886 (1968); U.K.W.F.: 515 (1974); Mabberley in K.B. 29: 570 (1974).