Flora of North America species comparison

yellow-orange, medium.

yellow to orange, 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.

dense, glomerulate or short-spiciform;

bracts at base of clusters and flowers (2–)4 or 5(–10), ovate-orbiculate to ovate-triangular, membranous, margins denticulate, apex erect, acute to cuspidate.

0–1 mm.

absent.

(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, 5–6 mm, membranous, not papillate;

calyx straw yellow, campanulate, 1/2–2/3 corolla tube length, divided to base or nearly so, finely reticulate, shiny, lobes ovate, broadly overlapping, margins denticulate, midvein not carinate, apex acute to cuspidate;

corolla white, drying creamy, straw yellow, or light brown, 4–5.5 mm, tube cylindric, 2.4–3.5 mm, not saccate, lobes spreading to reflexed, ovate-lanceolate to oblong-ovate, 1/3–4/5 corolla tube length, margins entire, apex usually acute, sometimes cuspidate, straight;

infrastaminal scales oblong, 2.4–3.4 mm, equaling corolla tube length, bridged at 0.7–1.5 mm, rounded, uniformly densely fimbriate, fimbriae 0.2–0.4 mm;

stamens barely exserted, shorter than corolla lobes;

filaments 0.5–0.7 mm;

anthers 0.6–0.9 × 0.5–0.6 mm;

styles filiform, 2.5–3.3 mm, longer 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 ovoid to subconic, 3.4–4.5 × 2.2–3 mm, ± raised and thickened around relatively small interstylar aperture, not translucent, capped by withered corolla, indehiscent.

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

2–4, slightly obcompressed, subglobose, broadly ellipsoid to obovoid, 1.5–1.7 × 1.1–1.3 mm, hilum area subterminal.

= 60.