Flora of North America species comparison

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

simple or with few ascending branches, (5–)10–70 cm, retrorsely short-strigose.

cauline, opposite, sometimes some subopposite or alternate;

petiole absent;

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

12–22 pairs, ascending or divaricate, antrorsely short-strigose, glandular-hairy;

blade oblong-lanceolate or linear, (10–)14–90[–95] x 2–20 mm, margins green, apex acute.

terminal, spikelike racemes;

bracts present.

present;

bracteoles absent.

1–2 mm, 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 tubular, 7–9 mm, tube 4–6 mm, hairy or glandular-hairy, lobes unequal, triangular, 0.5–7 x 2–4 mm, herbaceous, margins entire, apex acute, glandular-hairy;

corolla white with purple galea, 18–25(–30) mm, sparsely glandular-hairy externally, throat with 2 inflated lines between lateral and central lobes, abaxial lobes spreading, adaxial projecting;

stamens included, pollen sacs yellow, 2–2.5 mm, mucronate distally, brownish villous proximally, scarcely hairy distally, dehiscing longitudinally in distal 3/4–4/5;

style 14–20 mm, puberulent;

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

dehiscence loculicidal.

7–10 x 4.5–8 mm, setose or villous, some hairs glandular.

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

0.5–1 mm, longitudinally ridged or smooth.

racemes 1–14 cm;

flowers 2–16(–25) pairs, dense, not interrupted proximally, glandular-hairy;

peduncle absent;

bracts foliaceous, 8–23 x 3–11 mm, margins of proximal bracts +/- coarsely dentate, margins of distal bracts +/- entire.

= 12.

= 24 (Spain).