An ascending or diffuse herb, annual, profusely branched, pallid, 6-24 in. high; stem and branches tetragonous, shortly pilose or nearly glabrous, leafy; leaves opposite, ovate-lanceolate or lanceolate, obtuse at the apex, nearly rounded at the base, sinuate-dentate or remotely denticulate, spreading, petiolate, 1/2-1 1/4 in. long, 1/10-2/3 in. broad; petioles ranging up to 2/3 or 1/2 in. long for the lower pairs of leaves, those of the upper pairs gradually shorter, all the leaves more or less petiolate; racemes terminal, many-or several-flowered, subcorymbose or oblong, usually dense, very blunt, often umbellate-corymbose at the top, 1-6 in. long; bracts alternate, subopposite or crowded, sessile, smaller than the leaves; pedicels slender, 1/5-1 1/5 in. long, pilose, the hairs short, slender and tipped with minute glands; calyx-segments ovate-linear or suboval, subobtuse at the apex, puberulous, 1/12-1/6 in. long; corolla lilac-blue or purple; upper lip about 1/4-3/8 in. long, unequally 4-lobed; lobes oblong and rounded at the apex; lower lip about 1/4-1/3 in. long, rounded, emarginate; palate puberulous or shortly bearded; spur cylindrical, narrow, obtuse, nearly straight, 1/4-1/3 in. long; capsules broadly oblong, scarcely or but little narrowed near the apex, unequal and slightly narrowed towards the base, 3/8-2/5 in. long, 1/4-1/3 in. broad; valves glabrous, subtruncate at the apex, not or scarcely horned.
More
Annual herb, up to 0.15-0.60 m high. Stems decumbent to ascending, much branched, shortly pilose to glabrous, leafy. Leaves with blade ovate or ovate-lanceolate, 12-32 x 2.5-17.0 mm apex obtuse, base rounded, denticulate; petioles 10-13 mm long. Flowers: few to many in corymbose, oblong, or semi-umbellate racemes, 50-155 mm long, shortly pilose; pedicels up to 30 mm long; spur cylindrical, straight or curved forward, 6-8 mm long; corolla unequally 4-lobed, upper lobes 6-10 mm long, oblong, apex rounded, lower lip 6.0-8.5 mm long, rounded, emarginated, palate papillate or with small hairs, lilac-blue, purple or white; Jul., Aug. Fruit an oblong capsule, up to 10 x 8 mm, hardly narrowed near apex.
Annual herb, up to 600 mm high; stems ± decumbent to ascending, much branched,leafy. Leaves ovate or ovate-lanceolate, obtuse, denticulate. Flowers in ± corymbose,oblong, semi-umbellate racemes up to 144 mm long, shortly pilose; pedicels up to 30 mm long. Corolla mauvish blue, purple or white; upper lobes oblong; palate papillate or with small hairs. Spur ± cylindrical, straight or ± forward curved, 6-8 mm long. Flowering time July, Aug. Fruit an oblong capsule, up to 10 x 8 mm, hardly narrowed near apex.
Home
