Flora of North America species comparison

erect, branched or unbranched near base, much branched distally, usually with 1 or 2 nodes between branches, distal branching dichotomous or lateral branches shortened, 5–60 cm.

erect, usually unbranched near base, branched at each of several nodes proximal to first flower, less branched distally, branching subdichotomous, 15–100 cm.

reduced distally, 10–60 × 1–5 mm;

petiole 0–10 mm;

blade very narrowly lanceolate.

much reduced distally, 20–75 × 1–6 mm;

petiole 0–10 mm;

blade narrowly lanceolate.

with flowers arising usually as proximally as first 1–20 nodes from base.

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

sepals 0.9–3(–5) mm, reflexed singly or in pairs;

petals 1.2–5(–7) mm;

pollen 90–100% fertile;

stigma hemispheric to subglobose, exserted beyond anthers of longer stamens or surrounded by them at anthesis.

sepals 3–6 mm, reflexed singly or in pairs;

petals 4–8 mm;

pollen 90–100% fertile;

stigma hemispheric, usually exserted beyond anthers of longer stamens at anthesis.

ascending to reflexed, subterete, 3–15 × 1–1.5 mm, with inconspicuous or conspicuous constrictions between seeds, valve margins somewhat undulate, all valves free from septum after dehiscence, septum straight or sinuous;

pedicel 2–10(–15) mm, usually shorter than capsule.

ascending or reflexed, subterete, 4–16 × 1–1.5 mm, with constrictions between seeds, valve margins undulate, all valves free from septum after dehiscence, septum sinuous;

pedicel 3–12 mm.

(3–)6–18, all or most developing, arranged ± parallel to septum and in alternating pattern between locules, crowded, overlapping, often appearing to form 2 irregular rows in each locule, or well spaced, forming a single row in capsule, brown, sometimes mottled with gray, 1–1.6 × 0.5–0.8 mm, glabrous or puberulent.

4–10(–13), 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 or gray mottled with brown, 1.2–2.3 × 0.6–1 mm, glabrous or puberulent.

= 28.

= 14.