Flora of North America species comparison

yellow-orange, medium.

pale yellow, slender.

dense to loose, spiciform or paniculiform, commonly originating endogenously;

bracts at base of clusters 1 or 2, at base of pedicels and/or flowers 0 or 1, ovate, membranous, margins entire or serrulate, apex obtuse to 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.

0–1 mm.

0.5–1.5 mm, papillate.

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

calyx yellow-brown, shallowly cupulate, 1/2 corolla tube length, divided 2/3 its length, not reticulate, not shiny, lobes oblong-ovate, bases slightly overlapping, margins entire or serrulate, midvein not carinate, apex obtuse;

corolla white, drying creamy white, 1.8–2.8 mm, tube cylindric-campanulate to cylindric, 1.1–2.2 mm, not saccate, lobes spreading, ovate, 1/3–1/2 corolla tube length, margins entire, apex obtuse, straight;

infrastaminal scales oblong, rounded, 0.9–1.7 mm, shorter than to equaling corolla tube length, bridged at 0.2–0.4 mm, sparsely fimbriate, more densely distally, fimbriae 0.1–0.3 mm;

stamens included to slightly exserted, equaling corolla lobes;

filaments 0.2–0.4 mm;

anthers 0.2–0.4 × 0.2–0.4 mm;

styles filiform or narrowly terete, (0.6–)1–2 mm, equaling or longer than 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 globose, 2.5–3.2(–4) × 2–4 mm, not thickened or raised around relatively small interstylar aperture, not translucent, capped 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.

1 or 2, obcompressed, broadly ovoid, 1.4–2 × 1.3–1.4 mm, hilum region terminal.

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

= 60.