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, profusely branched throughout, usually at every other node, branching dichotomous except near base, 10–50 cm.

reduced distally, 10–60 × 1–5 mm;

petiole 0–10 mm;

blade very narrowly lanceolate.

reduced distally, 10–40 × 1–5 mm;

petiole 0–3(–10) mm;

blade very narrowly lanceolate to sublinear.

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

with flowers arising as proximally as first 5–15 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 0.4–0.8 mm, reflexed singly;

petals 0.7–1.2(–1.5) mm;

pollen 90–100% fertile;

stigma subglobose, surrounded by anthers 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 to reflexed, subterete, 3–9 × 0.8–1.2 mm, with inconspicuous constrictions between seeds, valve margins entire or weakly undulate, all valves free from septum after dehiscence, septum straight;

pedicel (3–)5–12 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.

10–30, all developing, arranged ± parallel to septum and in alternating pattern between locules, crowded, overlapping, often appearing to form 2 irregular rows in each locule, brown or gray mottled with brown, 1–1.5 × 0.5–0.7 mm, glabrous.

= 28.

= 14.