Flora of North America species comparison

spreading, prostrate, or ascending, 10–60 cm, glandular.

erect, 10–60 cm, glandular.

glandular;

blade 10–25 × 6–12 mm, 4–8 times bracts, margins sharply serrate.

glandular;

blade 9–30 × 6–10 mm, 1–2 times bracts, margins weakly serrate.

ascending, 7–25 mm.

divaricate or ascending, 6–22 mm.

calyx lobes equal;

corolla lemon yellow with reddish veins in throat, abaxial lip prominent, adaxial lobes connate nearly to apices;

stamens medially adnate to corolla.

calyx lobes unequal;

corolla white with purple veins in throat, adaxial lobes connate 1/2–2/3 lengths, abaxial lip not prominent;

stamens distally adnate to corolla.

4–5 mm.

6–7 mm.

60–80, brown, radial walls of reticulum mamillate.

40–60, black, radial walls of reticulum smooth.

= 22, 44.