Flora of North America species comparison

to 8 mm wide, nodes even or extended to 0.5 mm.

mostly 1–2 mm wide, nodes slightly extended to 0.7 mm.

stipules linear-triangular, 3–6 mm;

petiole 2.5–5 cm × 1–4 mm;

blade concolor or discolor, drying olive, ovate-oblong to lanceolate, to 7(–10) × 5 cm, base subcordate to obtuse, margins crenate-serrate, serrate, irregularly serrate, or crenate-dentate, apex narrowly rounded, obtuse, or subacute, surfaces tomentose or pubescent, trichome rays 0.4–1 mm, and sparsely hispidulous, slightly scabrous or not.

stipules narrowly triangular, 3–4 mm, apex geniculate or curved;

petiole 0.6–0.8 mm wide;

blade discolor, abaxially gray-olive, adaxially darker, reddish brown, ovate-elliptic, to 6 × 4.5 cm, slightly resinous, base widely cuneate, truncate, or rounded, margins crenate-dentate or crenate-denticulate, apex widely obtuse, rounded, surfaces: abaxial sparsely to densely tomentose, adaxial densely tomentulose, trichome rays 0.2–0.4 mm.

subsessile, or on short pedunclelike lateral branches to 3.6 cm, glomerules 5–20 along stems, compact, often dense, sympodial, at times lax clusters with terminal flower and subtending dichasia;

bracteoles free or with 1 adherent to stipule forming an elliptic 2-cuspidate foliole at glomerule base, bracts subequal, lanceolate or linear, 0.3–1.5 mm wide, apex acute, entire.

lax, paniculiform, lateral branches to 15 cm, clusters 5 or 6, oblong or deltate, with 1 terminal flower, the 2 or more dichasia (cincinni) arising from accessory shoots below it;

bracteoles free, bracts unequal, major bract of primary cyme elliptic, oblong, ovate, or obovate, 0.8–2.2 mm wide, apex obtuse or rounded, (2–)3-cuspidate or 3-dentate, sharply pointed “cuspidate” incised lobes linear, narrowly triangular, or triangular, unequal, to 1.7 m long;

minor bracts lanceolate.

sessile or subsessile;

calyx 4.2–setose apically;

styles 0.9–1.7 × 0.1–0.3 mm, lateral or excentric, broader and stellate-hirsute distal to base;

stigmas 12-branched, plumose (1.2–1.4 × 0.5–0.8 mm, column 0.9–1.2 mm, branches to 0.7 mm) or dissolute-penicillate (0.6–1.2 × 0.7–1.6 mm, column 0.4–0.7 mm, branches to 1.1 mm).

sessile;

calyx 3.5–4.8 mm, densely to sparsely tomentulose, and hirsutulous and sparsely hirsute, tube 1.8–2.4 mm, lobes 1.5–2.4 mm;

petals bright yellow proximally, pale yellow distally, obtriangular, 3.7–4 × 1–1.4 mm, apex truncate, minutely puberulent across apical margin, trichome rays 1–2, abaxial surface minutely stellate-puberulent, stellate trichome rays dense, 8–10, adaxial surface sparsely pilose or villous, claw adherent for (0.4–)0.8–1 to stamen tube base;

stamens 2.6–3 mm, tube 2.2 mm, red-papillose distally;

anthers (0.7–)0.9–1 mm, base sagittate;

pistil 2.6–3.6 mm;

ovary velutinous-hirsute apically;

styles 1.3 × 0.1 mm, lateral, stellate-hirsutulous;

stigmas 10–26-branched, and upper sides of valve suture.

oblique, obconic, or obovoid, 2.1–3 × 1.5–2 mm, walls with endocarp corneous for 1+ mm from apex, sometimes merely membranous along one or both valve margins laterally; partially apically dehiscent to 2-valvate.

dark brown, obovoid or obconic, 2–2.2 × 1.2–1.5 × 1–1.3 mm, smooth.

dark chocolate brown with light brown zone, obovoid-obconic, 1.6–2.3 × 1–1.4 × 1.2–1.3 mm, apex broadly rounded, nearly truncate in lateral view, smooth, apex with very fine raised concolorous line.

= 24, 26 (India), 40 (Africa).