Epiphytic or terrestrial perennial; stem to 2 m. long, though usually less, moderately branched, often rooting at the lower nodes and becoming woody below, rufous pubescent on the younger parts but becoming glabrescent eventually.. Leaves spirally arranged; petiole (1–)2–22 mm. long; lamina elliptic to elliptic-lanceolate or ovate, 1.8–7(–9) cm. long, 1–2.8 cm. broad, the base shortly acuminate, rufous pubescent above and beneath, or glabrous and somewhat pitted above; lateral veins 6–12 pairs, margin serrulate or crenulate-denticulate.. Inflorescence a 1–4-flowered subumbellate raceme; flowers red or orange-red.. Peduncle 6–15 mm. long, usually pubescent, ± erect.. Bracts linear-subulate, 4–5 mm. long, pubescent.. Pedicels 19–26 mm. long, slender, pubescent.. Lateral sepals narrowly oblong-lanceolate, 4–5 mm. long, subacute, pubescent.. Lower sepal bucciniform, ± 8 mm. long, gradually tapering into an incurved spur, 18–24 mm. long overall, rufous pubescent.. Dorsal petal 7–8 mm. long, 4–5 mm. broad, cucullate, dorsally with a narrow crest terminating in a short acute point, finely pubescent on the crest.. Lateral united petals 10–11 mm. long; upper petal ± oblong, 5 mm. long and 3.5 mm. broad, entire to slightly emarginate; lower petal oval to oval-elliptic, ± 6 mm. long, 2.5 mm. broad, entire.. Ovary pubescent.. Fruit fusiform, ± 10 mm. long, 4 mm. broad, pubescent.. Fig. 4/55, p. 8.
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