Compilation
Buchnera glabrata

an erect, decumbent or ascending herb, glabrous, subglabrous or hispidulous at the base, annual, 2–24 ft. high or more, leafy at the base and sometimes also upwards, turning black in drying; stem simple or loosely branched, slender, firm, terete or obtusely tetragonal; branches very slender; leaves oval, obovate or oblong, rounded or obtuse, wedge-shaped at the base sometimes abruptly so, sessile or shortly petiolate, glabrous or scabrid-hispidulous above, on the nerves beneath and along the margin, firmly herbaceous, entire or somewhat dentate, 1/2–2 1/4 in. long, 1/16– 3/4 in. broad; lower leaves crowded and 3-nerved at the base, the upper usually few, opposite or subopposite or some of the leaves quasi-fasciculate; flowers rather numerous, white or blue, about 1/3 in. long; spikes terminal, dense or subcapitate in flower, elongated and oblong and less dense in fruit, not markedly tetragonal, 1/4–2 in. long; pedicels very short; bracts ovate, acute, concave, ciliate, otherwise glabrous, 1/6– 1/3 in. long; bracteoles boat-shaped, acute, ciliate, otherwise glabrous, 1/10– 1/5 in. long; calyx campanulate-oblong, 1/6– 1/3 in. long; tube 1/8– 1/6 in. long, glabrous, usually 8-ribbed; lobes 4 or 5, ovate or lanceolate, pointed, ciliate, otherwise glabrous or very nearly so; corolla-tube 1/5– 1/4 in. long, cylindrical, rather slender, glabrous or very nearly so; limb speading; lobes 5 or rarely 6, oval, glabrous, 1/16– 1/5 in. long; stamens and style included within the corolla-tube; capsule oval-oblong, about 1/4 in. long. null