Flora of North America species comparison

yellow to orange, slender to medium.

yellow-orange, slender.

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, racemiform or corymbiform;

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

0.5–3(–4.5) mm.

2–5(–7 mm).

(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, 3–5 mm, membranous, not papillate;

calyx light brown to reddish, cupulate-turbinate, 1/2–3/4 corolla tube length, divided 1/2 its length, not reticulate or shiny, lobes triangular-ovate, bases scarcely overlapping, margins entire, revolute, midvein not carinate, apex obtuse to subacute;

corolla white, drying creamy or reddish, 2.8–4.7 mm, tube campanulate, 2–3 mm, not saccate, lobes erect to spreading, triangular-ovate, 1/2 corolla tube length, margins entire, apex acute, inflexed;

infrastaminal scales oblong-ovate, 1.8–2.8 mm, equaling corolla tube length, bridged at 0.8–1.4 mm, rounded, uniformly densely fimbriate, fimbriae 0.3–0.5 mm;

stamens slightly exserted, shorter than corolla lobes;

filaments 0.2–0.4 mm;

anthers 0.6–0.8 × 0.5–0.6 mm;

styles filiform, 1.6–2.5 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.

globose-ovoid, 2.5–3.5 × 2.5–3.5 mm, not thickened around relatively small interstylar aperture, not translucent, surrounded by withered corolla, indehiscent.

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

2–4, obcompressed, subglobose to broadly ellipsoid, 1.3–2 × 1–1.7 mm, hilum region subterminal.

= 56.