Flora of North America species comparison

internodes 4-lined.

internodes 4–6-lined at first, soon 2-lined.

blades oblong or elliptic to obovate, 4–25 × 2–12 mm, base not articulated, cuneate, margins plane, apex rounded, midrib with 2–4 pairs of branches.

blades elliptic, 15–26 × 5–8(–11) mm, base not articulated, cuneate to subrounded, with glandlike auricles, margins subrecurved to subincrassate, apex obtuse to acute, midrib with to 4 pairs of branches.

1(–5)-flowered.

1-flowered, branching from apical node repeatedly pseudodichotomous, without branches from proximal nodes.

20–25 mm diam.;

sepals persistent, not enclosing capsule, 5, broadly elliptic to elliptic-spatulate or obovate, subequal, 4–5 × 2.5–3 mm;

petals 5, golden yellow, oblanceolate, 6–10.5 mm;

stamens persistent, 100;

ovary 3-merous.

15–20 mm diam.;

sepals persistent, enclosing capsule, 4, unequal, outer broadly ovate, 8–17 × 5–9 mm, apex acute to subacuminate, inner linear-lanceolate, 5–6 × 0.6–1.2 mm, apex acuminate;

petals 4, bright yellow, obovate, 10–18 mm;

stamens persistent, 70–80;

ovary 3–4-merous.

ovoid to ovoid-cylindric, 8–12 × 5 mm.

narrowly pyramidal-ovoid, 5–8 × 3–4 mm.

narrowly to broadly carinate, 1.5–2 mm;

testa finely foveolate-reticulate.

not carinate, 0.8 mm;

testa reticulate.