Flora of North America species comparison

alternate or seemingly whorled at ends of twigs;

petiole 1–4 mm;

blade elliptic to oblanceolate, (1.5–)2–5 × 0.6–1.4 cm, base cuneate, margins flat, apex mucronate, surfaces glaucous.

alternate;

petiole 6–14 mm;

blade ovate to elliptic, 5–12 × 2–4.5 cm, base cuneate, margins flat, apex acute to acuminate, mucronate, abaxial surface sparsely hairy, especially on veins, adaxial surface green.

terminal, solitary flowers or 2–3-flowered cymes, 2–4 cm;

bracts leaflike, lanceolate, 10–15 mm, margins entire.

terminal, (10–)40–80-flowered racemes or panicles (branches to 5 cm), (5–)10–20(–28) cm;

bracts (deciduous before anthesis), scalelike, linear to ligulate, 2–3 mm, margins ciliate.

5–10 mm, with 1–2, persistent bracteoles distally.

10–20 mm, with 2 deciduous, minute bracteoles proximally.

calyx lobes 5, lanceolate, 7–10 × 2–4 mm, apex acute, ciliate along margins especially basally;

corolla 5-lobed, petals pinkish or copper colored, narrowly elliptic, 10–15 mm;

stamens 8(–10);

filaments glabrous;

anthers 1.7–2 mm;

style (persisting in fruit), curved or recurved, 10–12 mm.

calyx lobes 5, broadly deltate, 1–1.5 × 1–1.2 mm, apex subacute, with short, stiff hairs;

corolla 4–5-lobed, petals white, narrowly elliptic to spatulate, 9–10(–14) mm;

stamens 10;

filaments 4–5 mm, glabrous;

anthers 0.7–1 mm;

style (not persisting in fruit), straight to slightly curved (not recurved), 7–10 mm.

5–6-parted, spheroidal, 5–8 mm, finely pitted, glabrous.

oblate-spheroidal, 4–5-parted, 7–12 mm wide, inconspicuously verrucose.

0.5–0.8 mm, testa with conspicuous cells.

ca. 50–100, 2–2.5 mm.

= 22.

= 22.