Flora of North America species comparison

internodes (4-) or 6-lined at first, then terete.

internodes usually weakly 2-lined, sometimes not lined, without black glands, rarely with reddish glands.

blades linear-subulate, 13–25 × 0.5–0.8 mm, base articulated, parallel, margins revolute, apex rounded to retuse, midrib unbranched.

usually spreading, rarely erect, sessile or (proximal) subpetiolate;

blade oblong-elliptic or elliptic to triangular-ovate or (proximal) obovate, 12–28(–32) × 6–15(–18) mm, base subcordate to rounded or (proximal) cuneate, margins plane, apex obtuse to rounded, midrib with 4–5 pairs of branches, tertiary veins not densely reticulate, black glands intramarginal (± dense) and, rarely, (1–2) laminar (distal).

narrowly pyramidal, 1–3-flowered, with 1–3(–5)-flowered dichasia from to 5 proximal nodes, without additional flowering branches;

pedicels 0.5 mm.

cylindric to narrowly pyramidal, (1–)8–20-flowered.

12–14 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–7 × 0.5–0.8 mm;

petals 5, golden yellow, oblanceolate-oblong, 5–7.5 mm;

stamens deciduous, 100;

ovary 3-merous.

6–15(–25) mm diam.;

sepals not or scarcely imbricate, erect in fruit, ovate to lanceolate or narrowly oblong, unequal to subequal, 2.5–5.5 × 1–2 mm, apex acute to rounded;

petals golden yellow, sometimes red-tinged, oblanceolate, 7–12 mm;

stamens 50–90(–109);

anther gland black;

styles 2–8 mm.

ovoid, 3–4 × 2–2.5 mm.

oblanceoloid, 6–10 × 3.5–6 mm, with longitudinal vittae.

carinate, 0.7 mm;

testa not seen.

not carinate, (0.5–)0.7–0.8 mm;

testa linear-reticulate.

= 16.