Subshrub to ± 2 m. with densely adpressed puberulous stems, ± woody at the base.. Leaves opposite or subalternate; blades ovate-oblong, up to 3 cm. long, 2 cm. wide, coarsely serrate-dentate, subacute at apex, narrowed into the petiole from a ± subtruncate base, shortly puberulous on both sides; nerves prominent beneath; petiole 6–8 mm. long.. Inflorescences terminal, spicate, up to 35 cm. long, densely puberulous; bracts narrowly deltoid-subulate, ± 5 mm. long.. Calyx ± 1.1 mm. long, densely puberulous with short spreading hairs, splitting in fruit; teeth unequal, 0.2–0.8 mm. long.. Corolla white; tube cylindrical, ± 3.5 cm. long, 1.5 mm. diameter, pubescent inside; lobes subequal, oblong, 5 mm. long, 2.2–2.8 mm. wide, rounded at apex.. Style 3.7 cm. long; stigma ovoid, 0.5 mm. long, papillose, oblique.. Nutlets narrowly linear-subcylindric, 7.5 mm. long including the short 1.3 mm. long wing, finely ribbed outside and ± reticulate near the wing, minutely papillate inside.
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