Flora of North America species comparison

erect, branched or simple, 2–30 cm.

erect, 5–15 cm.

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

blade linear, 2–60 × 1–4 mm.

alternate, secund, petiolate;

blade linear, 2–40 × 0.5–2 mm.

terminal, 1-bracteate;

bract linear to oblanceolate, to 20 × 2 mm.

1-bracteate;

bract linear to oblanceolate, 10 × 2 mm.

2–8;

sepals 3–7 mm;

petals 5, white, 4–6 mm;

stamens 3–5, anther yellow.

1–12(–20);

sepals 3.5–4.5 mm;

petals 5, white with yellow blotches at base, or pinkish, 10–15 mm;

stamens 5, anther yellow.

1.2–2.6 mm, tuberculate;

elaiosome absent.

0.8–1.5 mm, tuberculate;

elaiosome present.

= 28.