Flora of North America species comparison

erect, not fleshy, retrorsely short-strigose or glandular-hairy.

simple or with few ascending branches, (8–)12–50(–100) cm, densely glandular-hairy.

cauline, opposite, sometimes some subopposite or alternate;

petiole absent;

blade not fleshy, not leathery, margins coarsely crenate-dentate.

6–30 pairs, ascending or divaricate, glandular-hairy;

blade oblong-lanceolate, (10–)20–46 x 3–18 mm, margins green, apex acute.

terminal, spikelike racemes;

bracts present.

present;

bracteoles absent.

1 mm, glandular-hairy.

sepals 4, calyx radially or bilaterally symmetric, not flattened laterally, tubular or campanulate, not accrescent in fruit, lobes triangular or lanceolate;

petals 5, corolla white with purple galea, yellow, or red-purple, strongly bilabiate, tubular-funnelform, abaxial lobes 3, adaxial 2, adaxial lip galeate;

stamens 4, didynamous, filaments glabrous, anther mucros equal or absent;

staminode 0;

ovary 2-locular, placentation axile;

stigma clavate, capitate, or +/- 2-lobed.

calyx campanulate, 10–16 mm, tube 8–10 mm, glandular-hairy, lobes +/- equal, narrowly lanceolate, 4–10 x 1.5–2 mm, herbaceous, margins entire, apex acute, glandular-hairy;

corolla yellow, 20–25 mm, glandular-hairy externally, throat with 2 inflated lines between lateral and central lobes, abaxial lobes spreading, adaxial projecting;

stamens included, pollen sacs yellow, 1–2 mm, glabrous proximally, villous distally around pore, dehiscing longitudinally in distal 3/4–4/5;

style 10–20 mm, short-strigose;

stigma capitate.

dehiscence loculicidal.

6–10 x 2–4 mm, long-strigose.

150–450, white, reddish brown with age, ellipsoid or ellipsoid-oblong, wings absent.

0.2–0.3 mm, smooth.

racemes 3–30 cm;

flowers 4–35 pairs, interrupted proximally, dense distally, glandular-hairy;

peduncle absent;

bracts foliaceous, 15–25 x 3–6 mm, margins crenate-dentate.

= 12.

= 48.