Flora of North America species comparison

spreading, yellow to yellow-brown [gray], much-branched, woody-succulent, glabrous; short shoots common;

latex watery, yellow in young shoots, red in older shoots.

erect, green, sparsely branched, herbaceous, somewhat succulent, glabrous; short shoots absent;

latex watery, cloudy-whitish.

deciduous, usually fascicled on short shoots;

stipules absent;

petiole 0(–0.2) cm, not stipitate-glandular;

blade obovate-spatulate, 0.7–1.9 × 0.3–0.9 cm, unlobed (shallowly 3-lobed on active shoots), base attenuate, margins entire, apex usually rounded, sometimes emarginate, coriaceous, surfaces glabrous;

venation pinnate (palmate if lobed).

± evenly distributed on long shoots;

stipules persistent, 2–3 mm, deeply divided into linear-lanceolate segments;

petiole 6–10 cm, not stipitate-glandular;

blade cordate in outline, 6–11 × 3.5–6 cm, deeply 5–7-lobed nearly to base, segments deeply lobed, base cordate, margins coarsely dentate, apex acuminate, membranous, surfaces glabrous;

venation palmate.

on short shoots, cymes or flowers solitary;

peduncle 0.4–0.6 cm;

bracts 0.4–1 mm, margins entire, glabrous.

bisexual, terminal and subterminal, cymes;

peduncle 7.5–11 cm;

bracts 3–10 mm, margins entire, glabrous.

1–4(–6.5) mm.

9–13 mm.

sepals connate basally, ovate-lanceolate, 2.5–4 × 0.6–1 mm, margins entire, apex acute, surfaces glabrous;

corolla white, tubular-urceolate, petals connate most of length, 4–6 × 1.3–2 mm, surfaces glabrous;

stamens 10 in 2 whorls (5 + 5);

filaments of both whorls connate almost to top, outer whorl 1–2.5 mm, inner series 2.5–4 mm.

sepals connate 1/2 length, ovate, 2–2.5 × 1–1.2 mm, margins usually entire, rarely 1–2-lobed, apex acute, surfaces glabrous;

corolla deep red, rotate-campanulate, petals distinct, 7–10 × 2–3 mm, surfaces glabrous;

stamens 8 in 2 whorls (5 + 3);

filaments of each whorl appearing connate 1/2 length at anthesis, distinct at maturity, both whorls 2.5–3 mm.

resembling staminate, but sepals distinct, 1.5–3 × 0.5–1 mm;

petals 4–4.5 × 1–1.5 mm;

carpel 1;

styles 0.5–1 mm.

resembling staminate, but sepals distinct, lanceolate, 2.5–3.5 × 0.8–1 mm;

corolla rotate, petals 7–9 × 2.5–2.8 mm;

carpels 3;

styles connate to 3/4 length, 0.5–1.5 mm.

spheric, 0.9–1.1 × 0.9–1.1 cm, tardily dehiscent.

spheric, 1–1.5 × 1–1.5 cm, explosively dehiscent.

solid dark to golden brown, spheric, 10 × 10 mm;

caruncle absent.

brown with darker markings, ellipsoidal, 9–13 × 5–7 mm;

caruncle prominent.

= 44 (Mexico).

= 22.