Flora of North America species comparison

blade lanceolate, 1.5–2 mm.

sessile or amplexicaul;

blade lanceolate, 1.5–6 mm.

2–5 cm × 4–5 mm;

bract exceeding pedicel, not reaching calyx tip.

2–15 cm × 5–10 mm;

bract exceeding pedicel, sometimes reaching calyx tip.

5-merous;

sepals 0.5–1.5 mm, margins entire or subentire;

petals elliptic to ovate, 1.5–2 mm; antisepalous stamens 5, filaments confluent with nectar disc lobes, all originating from edge of disc.

4–5-merous;

sepals 2 mm, margins entire or denticulate;

petals obovate to ovate, 2–5 mm; antisepalous stamens 4–5, filaments confluent with nectar disc lobes, antipetalous stamens 1–4, smaller, filaments alternate with nectar disc lobes, all originating from edge of disc.

= 24.