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, 15–80 cm.

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, 15–60 × 1–5 mm;

petiole 0–10 mm;

blade narrowly lanceolate to sublinear.

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.

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

sepals 1–1.8 mm, reflexed singly or in pairs;

petals 2–3(–4) mm;

pollen ca. 50% fertile;

stigma hemispheric to subglobose, surrounded by anthers at anthesis.

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 or reflexed, terete to ± flattened, 6–15 × 0.8–1.1 mm, with conspicuous irregular constrictions between seeds, valve margins undulate, all valves free from septum after dehiscence, septum sinuous;

pedicel (2–)3–12 mm.

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.

2–10, ca. 1/2 aborted, arranged± parallel to septum and in alternating pattern between locules, adjacent seeds not overlapping, irregularly well spaced from each, forming a single row in capsule, brown or gray mottled with brown, 1.4–2 × 0.6–0.8 mm, glabrous or puberulent.

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.

= 14.