Flora of North America species comparison

light yellow, filiform.

yellow to orange, medium to slender.

dense, glomerulate;

bracts at base of clusters, pedicels, and/or flowers 1–3, subround, ovate, or rhombic to ovate-lanceolate, membranous, margins entire or denticulate, apex acute to obtuse.

dense, paniculiform or glomerulate, sometimes originating endogenously;

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

(0–)0.5–2.2 mm.

0.5–3 mm.

(4 or)5-merous, 2–3 mm, membranous, not papillate;

calyx straw yellow, campanulate to urceolate, equaling corolla tube length or nearly so, divided 2/3 its length, reticulate and shiny, lobes obovate-orbiculate, bases overlapping, margins denticulate, midvein not carinate, apex rounded;

corolla white, drying straw yellow, 1.6–2.6 mm, tube campanulate, 0.6–1.5 mm, not saccate, lobes reflexed, ovate to broadly elliptic, equaling corolla tube length, margins irregularly denticulate, apex rounded, straight;

infrastaminal scales ovate to oblong, 0.6–1.4 mm, equaling corolla tube length, bridged at 0.4–0.6 mm, rounded to truncate, uniformly denticulate or short-fimbriate, fimbriae 0.05–0.1 mm;

stamens included to slightly exserted, shorter than corolla lobes;

filaments 0.2–0.4 mm;

anthers 0.2–0.4 × 0.3–0.3 mm;

styles filiform, 0.3–0.5 mm, shorter than ovary.

(3 or)4 or 5-merous, 1.7–2.6(–3) mm, fleshy; usually not papillate, perianth cells convex, domelike;

calyx brownish, cupulate, usually equaling or longer than, rarely shorter than, corolla tube length, divided 1/2–2/3 its length, not reticulate or shiny, lobes triangular-ovate, bases not or slightly overlapping, margins entire, midvein ± carinate, apex acute;

corolla white, usually drying dark brown, 1.5–2.5 mm, tube campanulate to suburceolate, 0.5–1.5 mm, not saccate, lobes suberect to erect, triangular-ovate, 1/3 to equaling corolla tube length, margins entire, apex acute, inflexed;

infrastaminal scales relatively poorly developed, oblong, 0.7–1.5 mm, equaling or exceeding corolla tube length, bridged at 0.3–0.5 mm, 2-fid with 1–3 fimbriae on each side of filament attachment or with denticulate wings, fimbriae 0.3–0.5 mm;

stamens included, shorter than corolla lobes;

filaments 0.3–0.6 mm;

anthers 0.2–0.4 × 0.1–0.2 mm;

styles filiform, 0.7–1.8 mm, usually equaling, sometimes longer than, ovary.

globose-ovoid, 1.3–2.1 × 1–2 mm, not thickened or raised around inconspicuous interstylar aperture, translucent, capped by withered corolla, indehiscent.

globose, ovoid, or depressed, 1.8–2.5 × 3.5–5 mm, ± thickened, not raised, around relatively large interstylar aperture, not translucent, capped or not by withered corolla, indehiscent.

1, not angled or obcompressed or globose to globose-ovoid, 0.8–1.1 × 0.8–1.1 mm, hilum region terminal;

embryo enlarged-globose at base.

3 or 4, heterogeneous on same plant: obcompressed to weakly angled, broadly ellipsoid, or transversely oblique, 1.3–1.6 × 1.2–1.4 mm, hilum region usually subterminal, rarely almost terminal.

= 30.

= 30.