Flora of North America species comparison

erect, not fleshy, glabrous, sparsely to densely puberulent, densely villous, or glandular-pubescent.

branched, 4–22 dm, glabrous, glaucescent.

basal and cauline, opposite;

petiole present;

blade leathery, not fleshy, margins entire, pinnatifid, or 2-pinnatifid.

petiole 7–25 mm;

blade lanceolate, 60–160 x 12–60 mm, margins pinnatifid or basal leaves 2-pinnatifid, rarely entire, surfaces glabrous.

leaflike, 10–48 x 2–5 mm, margins entire or pinnatifid.

terminal, loose racemes;

bracts present.

present;

bracteoles absent.

7–12 mm, glabrous.

sepals 5, calyx radially symmetric, campanulate or turbinate, lobes linear to deltate, sometimes lanceolate;

petals 5, corolla yellow, bilabiate, campanulate, abaxial lobes 3, adaxial 2;

stamens 4, didynamous, filaments glabrous or ciliate, anthers villous;

staminode 0;

ovary 2-locular, placentation axile;

stigma truncate.

calyx glabrous, tube campanulate, 4–8 mm, lobes linear to narrowly deltate, 4–7 x 1–2 mm, margins entire;

corolla tube 25–38 mm, glabrous, lobes 5–9 x 6–15 mm;

filaments 12–26 mm, glabrous;

style 27–31 mm.

dehiscence loculicidal.

ovoid to pyriform, 11–13 x 9–11 mm, glabrous.

300–500, brown to blackish, ovoid to deltoid, wings present (absent in A. pedicularia).

= 14.

= 24.