Flora of North America species comparison

erect, canescent, hairs tufted (not appressed), 6–8-rayed, infrequently glabrate.

usually procumbent and ascending, hairs appressed, (6–)8–10-rayed, sublepidote.

stipules persistent, lanceolate, subfalcate, 3–5 × 1 mm, apex acuminate;

petioles 35–80 mm on proximal leaves, reduced to 10–15 mm on distal leaves and usually on xerophytes;

blade wide-ovate to ovate-lanceolate, very shallowly 3-lobed in distal 1/2 or unlobed (in most plants in the flora area), varying from 5–12 × 4–10 cm on proximal leaves to 2–4 × 1.5–3 cm on distal leaves, usually 1–2 times longer than wide, 2 times longer than petiole of proximal leaves to 3–5 times longer on distal leaves, base slightly cordate or rounded to truncate or cuneate, margins dentate to denticulate, apex acute, surfaces stellate-hairy, hairs (5–)6–12-rayed.

stipules persistent, lanceolate, subfalcate, 4–6 × 1–1.5 mm, apex acute;

petiole 10–25 mm;

blade wide-ovate to ovate, unlobed or rarely with 2 obscure lateral lobes halfway from base, (1.8–)3–4(–5.5) × (1–)1.5–3(–4.5) cm, usually slightly (ca. 1.2 times) longer than wide, 2 times longer than petiole, base cordate to rounded or truncate, margins crenate-dentate, apex rounded, surfaces hairy, hairs scattered, appressed, (6–)8–10-rayed, sublepidote.

first 1 or 2 flowers solitary, axillary, remainder in dense terminal spikes 3–10 cm, these terminating each branch;

floral bracts 2-fid, 4–5 × 2 mm.

axillary solitary flowers;

floral bracts absent.

0.1–3 mm, not lengthening in fruit;

involucellar bractlets adnate basally to calyx for 1.5–2 mm, lanceolate, subfalcate, 5–7 × 0.8–1.5 mm, equaling to barely exceeding calyx lobes, apex acute to acuminate.

3–5(–10) mm in flower, to 2 mm in fruit;

involucellar bractlets basally adnate to calyx for 2–3 mm, deltate-cordiform in distal 4–6 mm, abruptly narrowed, 8–10 × 3–5 mm, shorter than calyx lobes, apex acute.

calyx connate 1/4–1/3 its length, broadly campanulate, 5–6 mm, to 6–10 mm in fruit, surface densely hirsute, hairs scattered, appressed, apically directed, 1–1.5 mm, mixed with minute, closely appressed, 5–8-rayed, stellate hairs;

corolla wide-spreading, orange-yellow, 12–17 mm diam., petals obovate, shortly asymmetrically lobed, 6–10 × 4–6 mm, exceeding calyx by 2–3 mm;

staminal column 2–3 mm, stellate-puberulent;

style (9 or)10–15(–18)-branched.

calyx connate 1/3–1/2 its length, broadly campanulate, lobes slightly auriculate at base, 11–12 mm, to 13–17 mm in fruit, surface hairy, hairs scattered, appressed, stellate-lepidote;

corolla wide-spreading, golden yellow to pale orange-yellow, 30 mm diam., petals obovate, conspicuously asymmetrically lobed, 12–16 × 10–15 mm, exceeding calyx by 7–8 mm;

staminal column 4 mm, glabrous;

style 12–16-branched.

1.5 mm.

2–3 mm.

4–6 mm diam.;

mericarps tardily shed from calyx, (9 or)10–15(–18), 1.5–3 × 1.5–2 × 0.8 mm, margins angled, sides radially ribbed, narrowly-notched, with 1 minute, proximal-apical mucro to 0.1 mm, minutely hirsute, hairs ascending, restricted to top, simple, 0.1–0.5 mm.

9–10 mm diam.;

mericarps readily shed from calyx, 12–16, 4–6 × 4–6 × 1–1.5 mm, widely-notched, with 1 conspicuous, distally-directed, medial-apical cusp 1.5–2.3 mm and 2 distal-apical, contiguous, flattened, obtuse cusps 1 mm, surface sparsely hairy, hairs both erect and appressed, rigid, simple on apex and minute, stellate on dorsal 1/3, sides smooth.

= 24.

= 36.