Flora of North America species comparison

erect, usually unbranched near base, branched at each of several nodes proximal to first flower, less branched distally, branching dichotomous, 20–70 cm.

much reduced distally, 10–60 × 1–4 mm;

petiole 0–10 mm;

blade very narrowly lanceolate to sublinear.

with flowers arising usually as proximally as first 10–20 nodes from base.

sepals 1–1.4 mm, reflexed singly or in pairs;

petals 1.5–2.5 mm;

pollen 90–100% fertile;

stigma subglobose, surrounded by anthers at anthesis.

ascending to strongly reflexed, subterete, 4–9 × 0.9–1 mm, with conspicuous constrictions between seeds, valve margins undulate, all valves free from septum after dehiscence, septum sinuous;

pedicel 3–11 mm, usually about equal to capsule.

usually 3–6, all developing, arranged± parallel to septum and in alternating pattern between locules, adjacent seeds not overlapping, well spaced from each, forming a single row in capsule, brown, sometimes mottled with darker spots, 1.3–1.7 × 0.6–0.8 mm, glabrous.

= 14.