Flora of North America species comparison

yellow to orange, medium.

yellow-orange, slender.

dense, corymbiform or glomerulate;

bracts at base of clusters 1, at base of pedicels 0 or 1, ovate or ovate-triangular to lanceolate, membranous, margins entire, apex acute.

glomerulate or compact-paniculiform, 15–70-flowered, flowers subsessile;

bracts at base of clusters 1, at base of pedicels 0–2, ovate to lanceolate, membranous, margins entire, apex acuminate to attenuate.

0.3–2.5(–3.5) mm.

0.2–0.6 mm.

(4 or)5-merous, 1.9–3.6 mm, membranous, not papillate;

calyx yellow, cupulate, equaling corolla tube length, divided 2/5–3/5 its length, reticulate, shiny, lobes ovate-triangular, bases overlapping, margins entire, midvein not carinate, without multicellular protuberances, apex obtuse to rounded;

corolla creamy white, drying creamy or golden yellow, 2–3.5 mm, tube campanulate, (1.1–)1.5–1.9 mm, not saccate, lobes spreading, triangular to triangular-lanceolate, equaling corolla tube length, margins entire, apex acute to acuminate, inflexed;

infrastaminal scales oblong-ovate to spatulate, rounded, 1.5–2 mm, equaling or exceeding corolla tube length, bridged at 0.3–0.5 mm, uniformly densely fimbriate, fimbriae 0.3–0.4(–0.5) mm;

stamens exserted, shorter than corolla lobes;

filaments 0.4–0.7 mm;

anthers (0.3–)0.4–0.5 × 0.2–0.3 mm;

styles filiform, 0.5–1.6 mm, shorter than to equaling ovary.

5-merous, 2.5–4 mm, membranous, not papillate;

calyx brownish, campanulate, equaling corolla tube length, divided 1/2–2/3 its length, not reticulate, shiny, lobes oblong, obovate, ovate, or spatulate, bases overlapping, margins entire or finely serrulate-denticulate, midvein not carinate, apex acute to obtuse, each exceeded by hornlike appendage, 0.3–0.6 mm;

corolla creamy white, drying brown, 2.2–3.2 mm, tube campanulate, 1.2–1.6 mm, not saccate, lobes spreading to reflexed, ovate to lanceolate, equaling corolla tube length, each with subapical, hornlike projection, 0.3–0.7 mm, margins entire or irregularly denticulate, apex obtuse, straight;

infrastaminal scales oblong to broadly ovate or rounded, 1.2–1.6 mm, equaling corolla tube length, bridged at 0.5–0.7 mm, sparsely, uniformly short-fimbriate, fimbriae 0.04–0.1 mm;

stamens exserted, shorter than corolla lobes;

filaments 0.3–0.9 mm;

anthers 0.4–0.5 × 0.2–0.3 mm;

styles stout, ± subulate, 0.9–2 mm, longer than ovary.

depressed-globose to depressed, 1.3–2.8 × 1.9–3.8 mm, not thickened or raised around relatively large interstylar aperture, sometimes translucent, to 1/3 enveloped by withered corolla, indehiscent.

globose to slightly depressed, 1.8–2.3 × 1–2 mm, not thickened or raised around relatively small interstylar aperture, not translucent or becoming translucent very late, capped by withered corolla, dehiscence circumscissile.

4, angled, subglobose to broadly ellipsoid, 1.1–1.5 × 0.9–1.1 mm, hilum region subterminal.

1–4, angled, subglobose or ovoid to broadly ellipsoid, 0.7–1.1 × 0.7–0.9 mm, hilum region subterminal.

= 56.