Erect shrub up to 45 cm (1 1/2 ft) or so. Branches rather slender, virgate or spreading, the upper hirsute, the lower glabrescent. Leaves 4-nate, 3-4 mm long, erect, imbricate, linear or subulate, acute, keeled, hairy on the keel and ciliate. Flowers terminal on short branchlets mostly solitary or in pairs forming a long dense pseudo-raceme 8-15 cm long at the ends of the branches; peduncles 1-1.5 mm long; bracts remote, small. Sepals 3 mm long, ovate-lanceolate or broad ovate-acuminate, keel-tipped, subfoliaceous, thin, hirsute, ciliate. Corolla 6-7 mm long, funnel-shaped, the lower half of the tube distinctly contracted, the upper half widened to the mouth, variable between obconic and subcampanulate, thinly pilose with longish hairs, bright yellow; lobes large, rounded or, occasionally acute, mostly spreading at maturity and, occasionally recurved, less than 1/2 as long as the tube. Anthers manifest, 1.3 mm long, lateral, cuneate-oblong, subacute, minutely scabrid, muticous; pore narrow, 1/3-1/2 the length of the cell. Ovary spherical, small, glabrous; style shortly exserted; stigma capitellate.
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Erect shrublet to 50 cm. Flowers medium, urn-shaped, hairy, golden-yellow.