Stoloniferous creeping terrestrial herbs 5-20 cm tall; stems slender and terete, ca. 5 mm in diam., hirsute, the young stems reddish, the stolons to 50 cm long, reddish or green, hirsute with few branches. Leaves grouped at the apex of stolon or branch, equal or subequal in a pair, somewhat bullate, broadly elliptic to oblong ovate, 2.6-8.9 cm long, 1.1-5.0 cm wide, membranous, the apex acute, obtuse or acuminate, the base obliquely rounded to acute or subcordate, crenate to serrate, above dark green, reddish green or with pale green or silvery variegation along the impressed main veins, hirsute, trichomes erect or appressed, below lighter green with prominent veins, the petioles 0.7-4.1 cm long, usually reddish, hirsute. Inflorescences of 1-4 flowers; peduncles short, 1-2 mm long, bibracteate; pedicels 1.1-4.5 cm long, reddish, hirsute. Flowers showy, usually red; floral tube short, rounded, hirsute; sepals lanceolate, slightly connate at base, 4 sepals erect, the fifth curved around corolla spur, 5-12 mm long, 1-3 mm wide, sparsely pilose, the apex acute, subentire, the outside green or reddish, the inside green; corolla scarlet, bright red, orange, at least on the upper side, yellow and sometimes spotted on the lower side, or rarely all yellow, inside yellow with red or purple spots, the throat with colorless papillae, limb orange
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red or deep red, tube ca. 2.0 cm long, 3-4 mm wide at the oblique base, slightly contracted above the spur, above curved and 6-9 mm wide, widening to a prominent swelling just below the throat, the outside villous; spur obtuse, the limb somewhat oblique, 14-25 mm wide, the lobes nearly equal, rounded, entire to erose, the upper lobes somewhat reflexed, the lower lobes spreading; stamens included, the filaments connate at the base, glabrous, contorted after anthesis, the anthers coherent in a square, each orbicular or oblong, staminode ca. 1 mm long, glabrous with a sterile anther; nectary a single glabrous gland, entire or slightly bilobed, rarely 2 lateral glands; ovary ovoid, 2.5-4 mm long, hirsute, the style glabrate, the stigma bilobed. Capsule globose, 4-6 mm in diam., hirsute; seeds ellipsoid, ca. 0.5 mm long or less, dark brown.
Corolla tube ≤ 2.5 cm long, curved at middle, yellow in the throat, 2 dorsal lobes recurved
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