Flora of North America species comparison

internodes 6-lined at first, soon 2-winged, then terete, not glaucous.

internodes 4-lined at first, soon 2-lined to terete.

blades linear-subulate, 8–20 × 0.7–1 mm, not glaucous, base articulated, parallel, margins revolute, apex sometimes slightly broadened, midrib unbranched.

blades narrowly elliptic-oblong or oblanceolate to linear, 20–45 × 2–7 mm, base articulated, narrowly cuneate to attenuate, margins recurved to revolute, apex apiculate-rounded to subacute, midrib with 14–17 pairs of branches.

rounded-pyramidal to corymbiform, sometimes intercalary as result of resumed vegetative growth, (3–)7–32-flowered, sometimes with single flowers or 3–5-flowered dichasia from to 3 proximal nodes.

broadly pyramidal to broadly cylindric, 5–25-flowered from apical node, with (2–)5–15-flowered dichasia from 1–2 proximal nodes.

13–16 mm diam.;

sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–8(–10) × 0.5 mm, not glaucous;

petals 5, bright yellow, obovate-spatulate, 6–9 mm;

stamens deciduous, 70–100;

ovary 3-merous;

styles 2.5–4 mm.

10–17(–20) mm diam.;

sepals deciduous, not enclosing capsule, 5, narrowly oblong to oblanceolate-spatulate, unequal or subequal, 4–6 × 1–1.5 mm, basal veins 1–3;

petals 5, deep golden yellow, obovate-oblanceolate, 6–9 mm;

stamens deciduous, 100–150;

ovary 3–4(–5)-merous.

± narrowly ovoid-conic to ovoid-ellipsoid, 5.5 × 2.5–3 mm.

narrowly ovoid conic to cylindric-ovoid, 5–6(–7) × 2–3 mm, not or scarcely lobed.

not carinate, 0.4 mm;

testa finely foveolate-reticulate.

not carinate, 0.8–1.3 mm;

testa linear-reticulate.

= 18.

= 18.