Much like R. ciliata but more erect and with ascending branches. Stems hairy, up to 40 cm high. Leaves fasciculate, soon drying and often falling off, rigid, spreading or erect, often incurved, ciliate at the base, often with 1-2 pairs of linear teeth near the tip. Flowers solitary or in groups of 2 or 3. Bracts usually forming a distinct bulge 0.5-2 cm long below the flower, most often incurved, pinnately toothed with close or distant, rigid, straight or curved teeth. Bracts usually ciliate at the base, sometimes all along, either glabrous on the back or with coarse white hairs. Calyx lobes longer than the bracbs, broadly lanceolate, 1-2 cm long, 3-5 mm wide, acute or acuminate, glabrous or with a few stout hairs on the back, edged with narrow pinnate teeth. Corolla campanulate, 1.5-2.5 cm long, white or blue, the lobes rather narrow, acute, longer than the tube, often marked by a dark blue spot, the spots large or small, sometimes white-edged, sometimes wanting. Disc flat. Style hairy. Ovary glabrous. Calyx in fruit red-brown or purple.
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Shrublet to 40 cm. Leaves often with axillary tufts, linear-pungent, ciliate and often prickly toothed above, midrib prominent beneath; bracts longer, ciliate and prickly toothed, glabrous or sparsely hairy. Flowers 1-3 at branch tips, white or blue, sometimes pink or red (only Potberg), mostly with dark spots on petals, 20-30 mm diam.
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