Flora of North America species comparison

light yellow, filiform.

yellow to orange, medium.

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, 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.

(0–)0.5–2.2 mm.

0.3–2.5(–3.5) 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.

(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.

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

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.

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.

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

= 30.

= 56.