Herbs with annual, erect or ascending, simple or branched stems from a perennial rootstock, up to 65 cm high. Leaves up to 2-5 cm long and equally broad, broadly ovate, reniform-cordate or reniform-orbicular, rounded to subobtuse, sometimes apiculate; or up to 1 • 5 cm long and 6 mm broad, rhomboid-ovate to ovate-lanceolate, cuneate at the base, obtuse or subacute, apiculate; the upper leaves generally smaller and further apart. Inflorescence a dense small or large corymb, sometimes much contracted and head-like with relatively large bracts immediately below, or paniculate-corymbose, densely many-flowered; bracts ovate to lanceolate, or narrowly obovate to oblanceolate, obtuse to acute, erect. Calyx of 5 segments, each 3-8-25 mm long, 0-75-2-75 mm broad, lanceolate, elliptic-lanceolate or linear-oblong to ovate, rarely somewhat obovate, acute or acuminate, mucronate, the sides hyaline or membranous-opaque and brittle when dry, joined for 0-25-1 mm at the base, keeled or with a very narrow keel-wing. Corolla yellow, butter yellow (fide Holt) or white (Galpin 13815); tube 3-8 mm l
