Flora of North America species comparison

erect, branched or simple, 2–30 cm.

spreading, freely branched, 5–20 cm.

alternate, erect, not distinctly petiolate, with clasping leaf sheaths;

blade linear, 2–60 × 1–4 mm.

alternate, petiolate, clasping leaf sheaths absent;

blade lanceolate to broadly ovate, more often rhombic to suborbiculate, 20–70 × 10–40 mm.

terminal, 1-bracteate;

bract linear to oblanceolate, to 20 × 2 mm.

leafy.

2–8;

sepals 3–7 mm;

petals 5, white, 4–6 mm;

stamens 3–5, anther yellow.

2–8;

sepals 1.8–3.5 mm;

petals 5, pink or white, 3–5 mm;

stamens 5, anther white to yellow.

1.2–2.6 mm, tuberculate;

elaiosome absent.

1–1.5 mm, tuberculate;

elaiosome present.

= 28.

= 16.