Erect to decumbent perennial or shrubby herb with several stems from a woody rootstock; stems to 50 cm long, minutely puberulous to minutely sericeous. Leaves uniformly sericeous-puberulous or sparsely so on both sides, often densest along midrib, one in the whorl often much larger than the other three; lamina lanceolate to narrowly elliptic, largest 2.5-7 x 0.4-0.8 cm, with 1-7 widely spaced teeth per side or some entire. Spikes 1.5-4 cm long, 4-10-flowered; peduncle 2-10 mm long with 2-4 pairs of sterile bracts; fertile bracts not glossy, greenish to brownish, sometimes becoming white between veins but not with white veins, uniformly puberulous-sericeous or densely so, lower and middle elliptic-obovate or broadly so to suborbicular (excl. tip), 20-35 x 8-18 mm of which the recurved narrowly triangular spinose tip 5-16 mm, on each side with 5-7 teeth of which the longest 4-9 mm. Bracteoles 14-20 x 0.5-1 mm, linear, cuspidate, base slightly widened, sericeous-puberulous and ciliate. Sepals sericeous-puberulous or densely so all over (rarely glabrous towards base); dorsal 16-21 mm long, 3(-5)-veined from base, ovate with a long subligulate apical part which narrows gradually to the 1-3-toothed apex which is scarious or not; ventral 11-14 mm long, 2(-4)-veined from base, ovate-elliptic, narrowing gradually to an apex with two triangular mucronate teeth 1.5-3 mm long (rarely with additional small central tooth); lateral 6-9 mm long, ovate. Corolla bright blue, 24-30 mm long of which the tube 5-6 mm; limb spathulate, 13-20 mm wide, beneath densely hairy all over, central lobe about as wide as long, truncate to retuse, slightly to distinctly narrowed at base; filaments 6-9 mm long, glabrous or sparsely glandular, not or sparsely hairy at base; appendage 2-3 mm long, straight, rounded; anthers 3-4 mm long. Capsule 10-11 mm long; seed ±6 x 4 mm.
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Dwarf shrub, 300-500 mm tall, unarmed, pubescent. Leaves linear, irregularly pinnatifid. Spikes ovoid, leaves present below spikes. Lowest sterile bracts similar to upper fertile ones, but reduced in size; broadly ovate, pubescent, apical spine curved outwards, margin spinose. Flowers blue, purple.