Flora of North America species comparison

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

erect, hairs scattered, appressed, distinctly bilateral, 4-rayed, not sublepidote, swollen-based, or few, minute, marginal, simple hairs.

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.

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 at first, later congested or loose terminal spikes 1–2 cm, these in distal leaf axils or terminating each branch;

floral bracts usually 2-fid, 3–6 × 1 mm, or flowers subtended by leaf and stipules.

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.

0.5–2 mm;

involucellar bractlets basally adnate to calyx for 0.5–1 mm, lanceolate, subfalcate, 4–6 × 0.8–1 mm, ± equaling calyx lobes, apex acuminate.

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 for 1/4–1/3 its length, broadly campanulate, 5–6 mm, to 7–11 mm in fruit, surface moderately hairy, hairs simple, 2–4-rayed, mixed with scattered, 4–6-rayed, stellate, minute hairs;

corolla campanulate to wide-spreading, yellow to pale yellow-orange, 12–17 mm diam., petals obovate, asymmetrically lobed, 6–7 × 3–4 mm, exceeding calyx by 2 mm;

staminal column 2–2.5 mm, sparsely stellate-puberulent;

style (9–)11–13(–16)-branched.

1.5 mm.

1.5–1.7 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.

4–7 mm diam.;

mericarps tardily shed from calyx, (9–)11–13(–16), 2.5–3 × 2–2.5 × 1.1 mm, margins angled, sides radially ribbed, narrowly-notched, with 3 minute, apical cusps 0.1–0.4 mm, 1 at proximal-apical surface, 2 at distal-apical surface, moderately hairy on dorsal 1/3, hairs erect, minute, simple or 2–rayed, and erect, simple, rigid hairs 0.5–1 mm, minutely hirsute with ascending, simple hairs 0.1–0.5 mm mixed with minute, simple or 2- or 3-rayed, stellate hairs.

= 24.

= 48.