Flora of North America species comparison

inconspicuous to conspicuous (often forming an amorphous mass), slender, usually branched.

inconspicuous, slender, unbranched or branched.

several to numerous, appressed;

blade lanceolate to lanceolate-ovate, 5–10 mm, margins entire, apex acute, surfaces sometimes glandular-pubescent.

few, imbricate proximally, erect;

blade narrowly to broadly ovate, 5–7 mm, margins entire, apex acute to obtuse, surfaces glabrous.

spikelike racemes, purple, lavender, or pallid distally, rarely yellow, sometimes branched, glandular-pubescent;

flowers numerous;

bracts ± reflexed, lanceolate, 8–12 mm, apex acute or attenuate, densely glandular-pubescent.

spikelike racemes, creamy white proximally, dark purple distally, simple, densely glandular-pubescent, sometimes also sparsely pilose proximally (subsp. howellii);

flowers numerous;

bracts ascending to recurved, narrowly lanceolate-acuminate to lanceolate-subulate, 5–10 mm, apex acuminate, densely glandular-pubescent.

0–15 mm, much shorter than plant axis;

bracteoles 2.

0–5 mm (to 10 mm proximally), much shorter than plant axis;

bracteoles 2.

calyx purple, lavender, or pallid, weakly bilaterally symmetric, 8–14 mm, deeply divided into 5 lobes, lobes lanceolate-subulate, glandular-pubescent;

corolla 14–20 mm, tube white to pallid or cream, sometimes pinkish or light purplish tinged distally, sometimes with purple veins, constricted above ovary, slightly curved forward, glandular-pubescent;

palatal folds prominent, yellow, pubescent;

lips externally white to pallid or cream, sometimes pinkish or light purplish tinged, internally pink or purple, sometimes white with purple veins, rarely light yellow, abaxial lip spreading, 3–5 mm, lobes oblong-lanceolate, apex obtuse or rounded, adaxial lip erect or slightly reflexed, 4–6 mm, lobes ovate, sometimes deltate, apex rounded or obtuse to bluntly pointed;

filaments glabrous or pilose at base, anthers included or slightly exserted, glabrous or with few woolly hairs along sutures.

calyx dark purple externally, weakly bilaterally symmetric, (4–)6–10(–11) mm, deeply divided into 5 lobes, lobes linear-subulate, densely glandular-pubescent;

corolla 12–16(–18) mm, tube dark purple, sometimes yellow to white abaxially, constricted above ovary, bent forward, glandular-pubescent;

palatal folds prominent, pale yellow to white, glabrous or puberulent;

lips dark purple, abaxial lip usually white to pale lavender with purple veins, abaxial lip spreading abruptly from base, 4–5 mm, lobes narrowly oblong to oblong-triangular, apex acute or bluntly pointed, adaxial lip erect or reflexed distally, 3–5 mm, lobes triangular, apex acute;

filaments glabrous or with a few hairs at base, anthers included, glabrous or pilose.

ovoid, 6–13 mm.

narrowly ovoid to oblong-ovoid, 6–9 mm.

0.3–0.5 mm.

0.2–0.4 mm.

= 48.