Perennial herb, hoary, caespitose, stock woody, up to 15 mm in diam. at crown and there producing many dwarf leafy branchlets, flowering stems many, simple, scapose, up to c. 60-130 mm long, erect or decumbent, puberulous, hairs up to 0.2-0.4 mm long, balloon-tipped, smaller glandular hairs also present. Leaves opposite, bases connate, crowded at the base of the branchlets, c. 10-35 x 2.5-6 mm, elliptic tapering to a flat petiolar part accounting for 1/2-2/3 the total leaf length, apex of blade ± acute, margin obscurely to distinctly toothed, both surfaces puberulous, hairs as on stem. Flowers few to many in short terminal racemes always opposite, usually solitary in each bract-axil, rarely lowermost in 3-flowered dichasial cymules. Bracts (lowermost) c. 2-5 x 0.8-1.75 mm, lanceolate. Pedicels (lowermost) 1.5-13 mm, shorter upwards. Calyx bilabiate, tube c. 1.5-2 mm long, anticous lobes c. 2.5-4 x 1-1.5 mm, posticous lobes c. 2.5-4 x 0.8-1.2 mm, lanceolate, puberulous all over, hairs up to 0.3-0.4 mm long, balloon-tipped, tiny glandular hairs also present. Corolla tube c. 5.5-7 x 1.2-1.4 mm in throat, cylindric, inflated in upper part, limb bilabiate, c. 6-7.2 mm across lateral lobes, posticous lobes c. 2.75-3.2 x 1.5-1.8 mm, anticous lobe 2.8-3.5 x 1.4-1.8 mm, all lobes oblong, margins revolute, yellow, dark reddish patch in back of throat, puberulous outside, hairs balloon-tipped, inside back of throat pubescent with clavate hairs. Stamens 4, anticous anthers 0.6-0.8 mm long, tips just visible in mouth, posticous anthers 1.1-1.3 mm long, included, posticous filaments bearded. Stigma 2.4-3.8 mm long, included. Style 0.4-0.5 mm long. Ovary 1.1-1.25 x 0.8-1 mm. Capsules c. 5-6 x 2.5 mm. Seeds not seen.
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Hoary, perennial herb, up to 130 mm tall, stems in a tuft from a woody rootstock, with balloon-tipped hairs. Leaves opposite, basally crowded, elliptic, toothed. Flowers in racemes, corolla tube 5.5-7 mm long, limb bilabiate, lobes oblong, entire, yellow with a dark reddish patch at back of throat.