Flora of North America species comparison

alternate;

blade usually narrowly elliptic to elliptic, rarely somewhat falcate, 5.5–12 × 1–3.1 cm, veins 5–7, longitudinal, surfaces glabrescent.

alternate;

blade narrowly elliptic to elliptic or narrowly obovate, 2.6–9.9 × 0.5–2.5 cm, veins pinnate, surfaces glabrescent.

15–54-flowered, flowers in triads, pseudoterminal, sometimes also axillary distally, to 40 mm wide.

(10–)20–80-flowered, flowers in monads, pseudoterminal, sometimes also axillary distally, 45–70 mm wide.

calyx lobes glabrous abaxially, margins scarious, 0.3–0.4 mm wide;

petals deciduous, 2.5–3.5 mm;

filaments connate in bundles of 5–10, white, cream, greenish white, green, creamy white, or creamy yellow, 10.5–20 mm, bundle claw 0.9–2.5 mm;

style 11–18 mm;

ovules ca. 50–65 per locule.

calyx lobes hairy abaxially, sometimes only marginally, margins scarious, 0.5–0.6 mm wide, or herbaceous;

petals deciduous, 3.9–5.8 mm;

filaments distinct, 30–45 per flower, red or mauve, 17–25 mm;

style 23–31 mm;

ovules 170–300 per locule.

2.7–4 mm.

4.4–7 mm.

obvolute.

obvolute.

= 22.

= 22.