Flora of North America species comparison

internodes 4-angled.

internodes 4-lined.

spreading, sessile or subamplexicaul;

blade ovate or orbiculate to elliptic or oblanceolate (proximal) or oblong (distal), 3–13 × 1.5–8.5 mm, papery to membranous, margins plane, apex rounded, basal veins 3–5(–7), distally looped, midrib unbranched.

(main stem) spreading to appressed, sessile;

blade usually broadly to narrowly ovate, rarely elliptic or lanceolate, 4–20 × 5–15(–18) mm, mostly shorter than internodes, leathery, margins plane, apex acute to subrounded, densely gland-dotted, basal veins 1–5, if 1, midrib with 2–3 pairs of branches.

loosely corymbiform, 1–14-flowered, branching mostly dichasial.

broadly pyramidal to corymbiform, to 25-flowered, branching mostly dichasial.

3–5(–8) mm diam.;

sepals usually narrowly elliptic-oblong to oblanceolate-spatulate, rarely obovate, unequal, 2–4 × 0.9–2 mm, margins sometimes ciliate, not setulose-ciliate, apex subacute to rounded;

petals golden yellow to salmon-orange, oblanceolate, (1.7–)3.5–5 mm;

stamens (5–)12–15(–25), separate or obscurely 3-fascicled;

styles 0.5–2 mm;

stigmas scarcely capitate.

5–13 mm diam.;

sepals ovate or lanceolate to elliptic or obovate, subequal, 3–8 × 1.5–4 mm, margins sometimes ciliate, not setulose-ciliate, apex acute;

petals orange-yellow, obovate, 5–10 mm;

stamens 50–80, irregularly grouped;

styles 2–4 mm;

stigmas clavate.

ellipsoid to cylindric or subglobose, 2.5–5 × 1.7–2.5 mm.

ovoid to rostrate-subglobose, 3–5 × 2–3 mm.

0.5–0.6 mm;

testa linear-scalariform.

0.4–0.7 mm;

testa obscurely linear-reticulate to finely ribbed-scalariform.

= 16.