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1 Flowers axillary (the bracts subtending flowers resembling stem leaves in size and shape); stem leaves sessile or petioles < 4 mm. |
..2 Corollas 12-32 mm long. |
....3 Leaves deltate, apices obtuse; [sc. US, c. AR and se. OK south to w. LA and e. TX, in sandy woodlands and ravines] |
....3 Leaves lanceolate to oblong-cordate, apices acute-acuminate; [NC, KY, and MO northwards, in wetlands] |
..2 Corollas 5-10 mm long. |
......4 Lower leaves triangular or deltoid, with small hastate lobes; plants glabrous |
......4 Lower leaves without hastate lobes, narrowly ovate, ovate, or deltoid ovate; plants puberulent, pubescent, or glabrate. |
........5 Stems glabrate, the pubescence ascending, curled or appressed, eglandular. |
..........6 Median leaves 10-15 mm long; corolla 6.5-9 mm long |
..........6 Median leaves 20-40 mm long; corolla 8-10 mm long |
........5 Stems obviously hairy, the pubescence spreading, glandular, eglandular, or a mixture of both. |
............ 7 Mid-stem leaves sessile; [widespread, southward to the FL panhandle]. |
............ ..8 Upper stems antrorse eglandular and spreading stipitate-glandular; leaf veins tending to anastomose along margins, lower surfaces with only stipitate-glandular hairs, or nearly so; fresh plants inodorous |
............ ..8 Upper stems retrorse or spreading eglandular and/or stipitate-glandular; leaf veins usually unbranched along margins, lower surfaces clothed like stem with glandular and/or eglandular hairs; fresh plants with strong turpentine odor |
............ 7 Mid-stem leaves petiolate. |
............ ....9 Calyx eglandular; plants annual; [widespread in the Coastal Plain, east to n. peninsular FL] |
............ ....9 Calyx glandular; plants perennial; [rocklands of s. FL] |
1 Flowers in racemes or panicles (racemes of racemes) (bracts subtending flowers much reduced, not leaf-like); stem leaf petioles > 4 mm. |
............ ......10 Corolla tube interior lacking a sharply defined ring of hairs (annulus) at the bend of the tube near the mouth of the calyx (= non-annulate). |
............ ........11 Racemes secund. |
............ ..........12 Corollas ca. 6 mm long; racemes terminal and axillary |
............ ..........12 Corollas ca. 10 mm long; racemes terminal or terminating axillary branches |
............ ........11 Racemes not secund, flowers on more than one side of the axis. |
............ ............ 13 Stem stipitate glandular |
............ ............ 13 Stem not stipitate glandular |
............ ............ ..14 Stems and petioles with ascending hairs; at least some racemes from axillary branches; mid to upper leaves truncate basally |
............ ............ ..14 Stems and petioles with spreading or retrorse hairs; racemes terminal or in panicles; mid to upper leaves strongly cordate. |
............ ............ ....15 Margins of lower lip cleft and erose; lower lip with large lateral auricles (flabelliform) |
............ ............ ....15 Margins of lip entire; lip undulate or weakly auriculate. |
............ ............ ......16 Lower lip entirely white with a few blue spots; leaf surface smooth with sparse glandular hairs |
............ ............ ......16 Lower lip blue with two longitudinal white bands; leaf surface rugose, usually densely glandular hairy (but may be eglandular). |
............ ......10 Corolla tube interior with a sharply defined ring of hairs (annulus) at the bend of the tube near the mouth of the calyx (= annulate). |
............ ............ ........17 At least some upper leaves entire. |
............ ............ ..........18 Leaf blades < 2.5 mm wide; rhizomes present, with fusiform tubers; [endemic to FL] |
............ ............ ..........18 Leaf blades > 3.0 mm wide; rhizomes either absent or present (if present short and without tubers); [more widespread] |
............ ............ ............ 19 Leaves with stipitate glands |
............ ............ ............ 19 Leaves without stipitate glands. |
............ ............ ............ ..20 Corolla glabrous, lower lip with an immaculate the white central band; leaf bases long-attenuate |
............ ............ ............ ..20 Corolla short pilose, lower lip with blue spots or lines on the white central band; leaf bases cuneate to deltoid. |
............ ............ ............ ....21 Mid to upper leaves mostly ovate or obovate, occasionally widely elliptic (lowest leaves strongly ovate); leaves mostly crenate or serrate throughout, if leaves entire, then just below the inflorescence; lowest pedicels of main inflorescence axis mostly > 4 mm long; [xeric, sandy uplands; s. GA south to s. FL] |
............ ............ ............ ....21 Mid to upper leaves mostly elliptic; leaves mostly entire or serrate throughout; leaves with entire margins not only confined to just below the inflorescence; lowest pedicels of main inflorescence mostly < 4 mm long; [various mesic or wet habitats; widespread] |
............ ............ ........17 All leaves serrate or crenate. |
............ ............ ............ ......22 Second internode below the base of the inflorescence stipitate glandular. |
............ ............ ............ ........23 Calyces stipitate glandular. |
............ ............ ............ ..........24 Corollas 14-23 mm long |
............ ............ ............ ..........24 Corollas 24-39 mm long |
............ ............ ............ ........23 Calyces not stipitate glandular. |
............ ............ ............ ............ 25 Stipitate glands absent on leaf margins and veins on underside of leaf blade (sometimes sparse near petiole); upper portions of stem with zero to sparse stipitate glands and shorter, upwardly curled non-glandular hairs, leaves mainly cuneate to truncate (to subcordate) |
............ ............ ............ ............ 25 Stipitate glands present on leaf margins and on veins throughout underside of leaf blade; upper portion of stem with dense stipitate glands and shorter, randomly spreading non-glandular hairs, leaves mainly cordate to truncate (to cuneate) |
............ ............ ............ ......22 Second internode below the base of the inflorescence eglandular. |
............ ............ ............ ............ ..26 Corollas > 21 mm long*. |
............ ............ ............ ............ ....27 Stems glabrous or glabrate below inflorescence; calyces eglandular; [Mountains and Piedmont] |
............ ............ ............ ............ ....27 Stems canescent below inflorescence; calyces stipitate glandular or punctate glandular; [mainly Coastal Plain]. |
............ ............ ............ ............ ......28 Lower lip with 20+ blue spots; calyces stipitate glandular; [peninsular FL and s. GA] |
............ ............ ............ ............ ......28 Lower lip lacking blue spots; calyces punctate glandular; [s. SC to se. GA; disjunct to c. AL] |
............ ............ ............ ............ ..26 Corollas < 21 mm long*. |
............ ............ ............ ............ ........29 Calyces densely to sparsely canescent, eglandular or with punctate glands (stipitate glands may also be present). |
............ ............ ............ ............ ..........30 Leaves softly villous beneath; calyces and bracts eglandular |
............ ............ ............ ............ ..........30 Leaves glabrate, with appressed hairs on veins. |
............ ............ ............ ............ ............ 31 Stems canescent; calyces and bracts densely punctate glandular |
............ ............ ............ ............ ............ 31 Stems glabrate (rarely puberulent); calyces and bracts eglandular |
............ ............ ............ ............ ........29 Calyces pilose with spreading stipitate glandular hairs. |
............ ............ ............ ............ ............ ..32 Bracts with stipitate glands. |
............ ............ ............ ............ ............ ....33 Leaves shallow crenate, moderately to densely hirsute and with sparse light yellow or translucent glands; bracts with hairs > 0.3 mm long; calyces with moderate translucent or faint yellow punctate glands; widespread in our region, including west of the Mississippi River in w. LA and e. TX] |
............ ............ ............ ............ ............ ....33 Leaves deeply crenate or serrate, glabrate, with dense, resinous, yellow punctate glands; bracts with hairs < 0.2 mm long; calyces with prominent and dense resinous, yellow punctate glands; [Interior Highlands of MO, AR, and OK] |
............ ............ ............ ............ ............ ..32 Bracts without stipitate glands; leaves densely punctate glandular. |
............ ............ ............ ............ ............ ......34 Corollas 19-22 mm long; [Mountains of AL] |
............ ............ ............ ............ ............ ......34 Corollas 11-16 mm long; [Coastal Plain of SC and GA] |