Flora of North America species comparison

yellow to orange, slender to medium.

orange, medium.

dense, corymbiform to 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.

loose to compact, glomerulate or corymbiform;

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

0.5–3(–4.5) mm.

0.8–4(–5) mm, sometimes papillate.

(4 or)5-merous, 1.4–2.5 mm, membranous, corolla lobes sometimes papillate;

calyx yellow to brown, angled, cupulate, equaling corolla tube length, divided 1/2–2/3 its length, ± reticulate, shiny or not, lobes broadly ovate to rhombic, base auriculate, overlapping, forming prominent angles at sinuses, margins entire, midvein not carinate, without multicellular protuberances, apex rounded;

corolla whitish, drying yellow to brown, 1.2–2.2 mm, tube campanulate, 0.7–1.2 mm, not saccate, lobes spreading, triangular-lanceolate, equaling corolla tube length, margins entire, apex acute to acuminate, inflexed;

infrastaminal scales ovate to oblong, 0.7–1.4 mm, equaling or longer than corolla tube length, bridged at 0.3–0.5 mm, rounded, ± uniformly densely fimbriate, 0.15–0.25 mm;

stamens exserted, shorter than corolla lobes;

filaments 0.3–0.4 mm;

anthers 0.2–0.3 × 0.2–0.3 mm;

styles filiform, 0.7–1.1 mm, equaling ovary.

5-merous, 2.5–3.8 mm, membranous, perianth and ovary papillate;

calyx yellow to reddish brown, cupulate, ± equaling corolla tube length, divided 1/2–2/3 its length, ± reticulate, shiny, lobes ovate-triangular, bases not overlapping, margins entire, midvein not carinate, without multicellular protuberances, apex obtuse to subacute;

corolla white, drying yellow to reddish brown, 1.4–3.4 mm, tube campanulate, later globose, 1.1–1.8 mm, saccate between lines of stamen attachments, lobes spreading to reflexed, triangular, equaling corolla tube length, margins entire, apex acute to acuminate, inflexed;

infrastaminal scales ovate to spatulate, 1.2–2 mm, equaling or longer than corolla tube length, bridged at 0.3–0.5 mm, rounded, uniformly densely fimbriate, fimbriae 0.3–0.7 mm;

stamens exserted, shorter than corolla lobes;

filaments 0.4–0.7 mm;

anthers 0.4–0.7 × 0.4–0.5 mm;

styles filiform, 0.9–1.6 mm, equaling or longer than ovary.

depressed-globose to ovoid, 1.9–2.4 × 1.6–2.5 mm, not thickened or raised around relatively medium-sized to large interstylar aperture, translucent or not, base ± enveloped by withered corolla, indehiscent.

depressed-globose to depressed, 1.5–2.8 × 2.1–3.5 mm, not thickened or raised around relatively mid-sized to large interstylar aperture, not translucent, 1/2–2/3 of base enveloped by withered corolla, indehiscent.

4, angled, subglobose to broadly ellipsoid, 0.9–1.1 × 0.8–1 mm, hilum region subterminal.

2–4, angled, subglobose to broadly ellipsoid, 0.9–1.1 × 0.8–1 mm, hilum region subterminal.

= 56.