Flora of North America species comparison

spreading, reddish brown (when actively growing) or red to dark red or grayish (when dormant), much-branched, rubbery-succulent, glabrous; short shoots common;

latex watery, colorless to cloudy-whitish in fast growing shoots, blood red in basal portion of older shoots and rhizomes.

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

latex watery, cloudy-whitish.

deciduous, fascicled on short shoots;

stipules deciduous, linear, 1–2 mm, undivided;

petiole 0–0.2 cm, not stipitate-glandular;

blade linear-spatulate to narrowly obovate, 1.5–5(–7) × 0.2–0.7 cm, usually unlobed, sometimes shallowly, rarely deeply, 3-lobed, base attenuate, margins entire, apex rounded, membranous, 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.

terminal or axillary, fascicles;

peduncle absent;

bracts absent.

bisexual, terminal and subterminal, cymes;

peduncle 7.5–11 cm;

bracts 3–10 mm, margins entire, glabrous.

1–2.5 mm.

9–13 mm.

sepals distinct or connate basally, ovate to elliptic-lanceolate, 2.5–3 × 1.2–1.4 mm, margins entire, apex acute, abaxial surface hairy, adaxial glabrous;

corolla white to pinkish white, urceolate-tubular, petals connate most of length, 5–6 × 1.4–1.5 mm, abaxial surface sparsely puberulent abaxially, adaxial glabrous;

stamens 10 in 2 whorls (5 + 5);

filaments of both whorls connate from 1/5–3/4+ length, outer whorl 2–3 mm, inner whorl 3–5 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;

carpel 1;

style 2.5–3 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.

ellipsoidal, 1.2–1.4 × 1.1–1.3 cm, tardily dehiscent.

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

solid gray-brown, spheric, 12 mm diam.;

caruncle rudimentary.

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

caruncle prominent.

= 44.

= 22.