Slender, erect, annual herbs 1-5-10 cm high, simple or branched. Leaves 2-8 mm long, 1-3 mm broad, linear, lanceolate, or more or less elliptic, the lower ones often reduced and scale-like. Inflorescence a 1-few-flowered cyme, the branches very short or up to 2 cm long; bracts foliaceous, ovate-lanceolate to linear-oblong to linear-lanceolate. Calyx of 5 segments, each 2-5-6-5 cm long, lanceolate to triangular-lanceolate, acute or acuminate, free or joined for 0-5-0-75 mm, keeled. Corolla yellow; tube 5-5-10 mm long; lobes 1-25-3-75 mm long, 0-75-2-5 mm broad, sub-orbicular; obovate-oblong or ovate, rounded to subacute. Filaments 2-3 mm long, inserted 2-5-5-75 mm below the corolla-sinuses; anthers 0-75-T5 mm long, each with a small sessile or shortly stipitate apical gland and 2 very long-stipitate basal glands. Style and stigma 2-5-4-25 mm long, without a stigmatic swelling; stigma capitate, 2-lobed. Ovary shortly conical or somewhat obovoid.
