Flora of North America species comparison

ascending or prostrate, profusely branched basally, radiating from rootstock, mostly 0.2–0.5 m.

erect, green or reddish purple, branched distally, mostly in inflorescence, to nearly simple, 0.4–2 m.

petiole 1/2 as long as to equaling blade;

blade rhombic-ovate or ovate to lanceolate, 1–2 × 0.5–1 cm, base tapering or cuneate, margins entire, plane or slightly undulate, apex subacute, obtuse, or retuse or shallowly emarginate, mucronulate.

petiole 1/2 as long as to ± equaling blade;

blade rhombic-ovate or ovate to broadly lanceolate, 3–15(–20) × 1.5–10(–15) cm, occasionally larger in robust plants, base cuneate to broadly cuneate, margins entire, plane, apex acute or subobtuse to slightly emarginate, with mucro.

of pistillate flowers linear, 0.5–1 mm, 1/2 as long as tepals.

narrowly spathulate, 2–3 mm, equaling or slightly longer than tepals, apex short-spinescent.

terminal, erect, compact, pyramidal panicles and also some axillary clusters, green or silvery green, occasionally tinged with red, leafless at least distally.

terminal and axillary, erect, reflexed, or nodding, usually dark red, purple, or deep beet-red, less commonly almost green or greenish red, leafless at least distally, large and robust.

clustered at tips of inflorescences;

tepals 2–3;

stamens 2–3.

at tips of inflorescences;

tepals 5;

stamens (4–)5.

tepals 2–3, narrowly elliptic or oblanceolate, not clawed, equal or subequal, 1.2–2 mm, apex broadly acute;

style branches erect;

stigmas 3.

tepals 5, oblong to lanceolate, not clawed, equal or subequal, 1.5–3 mm, apex acute;

style branches erect or slightly reflexed;

stigmas 3.

very dark brown to black, 1–1.2 mm diam., shiny, filling only proximal portion of fruit.

usually white or ivory, with reddish or yellowish tint, sometimes dark brown to dark reddish brown, broadly lenticular to elliptic-lenticular, 1.2–1.6 mm diam., smooth or indistinctly punctate.

marked with 2(–3) green lines that intersect at apex and divide fruit into halves or quarters, slightly to distinctly inflated, ellipsoid, 2–3 mm, distinctly longer than tepals, smooth (in dry plants wrinkled or rugose), indehiscent.

obovoid to elongate-obovoid, 2–2.5 mm, smooth or slightly rugose distally, dehiscence regularly circumscissile.