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2 Leaves all sessile, or the best-developed with petioles < 5 mm long. | |
2 Leaves petiolate, the well-developed leaves with petioles (5-) 10-40 mm long. | |
4 Corolla 30-45 mm long, scarlet-red, (3-) 4-8 mm broad at the expanded portion of the throat; [primarily of mountain seepages, streambanks, and boggy places] | |
5 Leaves deltoid-ovate to ovate, 2-6 cm wide, usually ca. 2× as long as wide; orifice of the calyx glabrous to slightly hirsute with a few long hairs; upper lip of the corolla 5-8 mm long and not bearded (M. clinopodia) or 13-16 mm long and slightly bearded (M. media) near its apex; outer surface of the corolla glabrous to evenly pubescent with short curled hairs. | |
5 Leaves narrowly-deltoid, ovate-lanceolate to lanceolate, 1-4 cm wide, usually ca. 3-4× as long as wide; orifice of the calyx densely hirsute with numerous erect, stiff, white hairs; upper lip of the corolla prominently bearded or merely pilose near its apex; outer surface of the corolla evenly pubescent with short curled hairs. | |
8 Corolla deep purple; middle lobe of the lower corolla lip 4-6 mm long; outer bracts subtending the inflorescence reddish | |
9 Plants 30-130 cm tall; leaves herbaceous, pubescent, light to medium green, matte (not shiny); calyx 7-11 mm long, the lobes not pustulate-glandular; [of various habitats]. | |
11 Pubescence of the petioles and lower leaf surface hirsute or villous, the trichomes spreading, 1-3 mm long | |
11 Pubescence of the petioles and lower leaf surface canescent, the trichomes appressed (sometimes also with an admixture of longer, spreading trichomes) | |
1 Flowers in 2-6 glomerules, terminal and at 2-5 successive nodes down the stem; stamens included; leaves linear, lanceolate, to narrowly elliptic, usually broadest near the middle and tapered to a cuneate base, (2.5-) 3-8× (or more) as long as wide. | |
13 Bracts subtending the glomerules of flowers similar in shape, the outer bracts and inner bracts not strongly differentiated in width; corolla white to pink or lavender, with purple spots | |
13 Bracts subtending the glomerules of flowers graduated in shape, the outer 2× or more as wide as the inner; corolla white to pink or lavender, usually without purple spots. | |
17 Suffruticose; leaves linear-lanceolate to lanceolate, > 4 mm wide; stems and leaves green; petiole > 1 mm long. | |
20 Calyx teeth narrowly acute; calyx tube with scattered hairs between (and on) the veins; flowers yellow. | |
22 Leaves 2.2-3.5 cm long; upper bract tip acute; calyx lobe tips acuminate; {Atlantic Coastal Plain of ne. SC south to peninsular FL] | |
22 Leaves 3.2-10 cm long; upper bract tip acuminate; calyx lobes lanceolate; [collectively widespread inland and westwards]. | |
23 Lower leaf surface pubescent throughout; calyx lobe face pubescent; lower corolla lip < 2.8 mm wide | |
24 Calyx lobes with outer surfaces and margins minutely hispidulous, lacking longer, spreading white hairs. | |
25 Leaves strongly veined; leaf veins with mostly erect or ascending hairs; [widespread in our region] | |
26 Leaf undersurface with erect or ascending hairs 0.3-1.0 mm long, borne mainly or entirely restricted to the main veins |