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Branches with some spreading clustered hairs and many gland tipped hairs, hardly glabrescent in age. Leaves up to 3 1/2 by 1 1/4 in., elliptic, narrowed at both ends, stellately tomentose when young, becoming more or less glabrate when mature, and then showing no cystoliths under a microscope; gland-tipped hairs few, simple straight tawny hairs many; petiole 1/12– 1/3 in. long. Racemes 1–4-flowered (in Buchanan, 1028, stout, 8-flowered); bracts (sterile and fertile) 1/3– 2/3 in. long, linear or lanceolate, green, spine-toothed (in Buchanan, 1028, longer, stouter). Posticous and anticous calyx-segments subequal, 2/3 by 1/2 in., ovate, spine-toothed, reticulately veined (but sometimes, B. squarrosa, Klotzsch, scarcely 1/4 in. wide, oblong). Corolla pale purple-blue; tube 2/3 in. long, cylindric to the top; lobes 1/4– 1/3 in. long. Capsule 1/2 in. long, 4-seeded.