Flora of North America species comparison

yellow to orange, medium.

pale yellow, 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.

moderately dense, corymbiform or glomerulate;

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

0.3–2.5(–3.5) mm.

0.5–1.5 mm, papillate.

(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, 2–3 mm, fleshy, perianth cells convex, domelike, perianth papillate;

calyx yellow-brownish, shallowly cupulate, 1/2 corolla tube length, divided 1/2 its length, not reticulate or shiny, lobes triangular, bases not overlapping, margins entire, midvein not carinate, apex acute;

corolla white, drying brownish, 1.8–2.8 mm, tube campanulate-globulose, 1.3–2 mm, later urceolate, not saccate, lobes erect, ovate-triangular, 1/3–1/2 corolla tube length, margins entire, apex acute, inflexed;

infrastaminal scales absent;

stamens included, shorter than corolla lobes;

filaments 0.2–0.3 mm;

anthers 0.2–0.3 × 0.2–0.3 mm;

styles subulate, 0.4–0.8 mm, much shorter 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.

subglobose or globose to slightly depressed-globose, 2–3 × 2–3.5 mm, thickened and raised around relatively large interstylar aperture, translucent, surrounded by withered corolla, indehiscent.

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

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

= 56.