Flora of North America species comparison

yellow-orange, medium.

yellow to orange, medium to coarse.

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.

loose or dense, paniculiform, sometimes originating endogenously;

bracts at base of clusters 1, at base of pedicels 0 or 1, rarely 1 or 2(or 3) on pedicels, ovate to broadly triangular, membranous, margins entire or serrulate, apex acute to obtuse.

0–1 mm.

1–4.5 mm.

(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.

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

calyx yellow-brown, cupulate or campanulate to narrowly campanulate, 1/2 to equaling corolla tube length, divided 1/2–2/3 its length, not reticulate or shiny, lobes ovate to suborbiculate or oblong, bases barely to notably overlapping, margins entire to serrulate, midvein not carinate, apex rounded or obtuse;

corolla white fresh or dry, 1.8–4 mm, tube broadly to narrowly campanulate, 1–2.5(–3) mm, not saccate, lobes spreading to reflexed, mostly ovate, (1/4–)1/3 or 1/2 to equaling corolla tube length, margins entire, apex rounded to obtuse, straight;

infrastaminal scales oblong, 1–2.5 mm, equaling corolla tube length, bridged at 0.4–0.8 mm, sparsely fimbriate, fimbriae 0.4–0.8 mm;

stamens exserted, shorter than to equaling corolla lobes;

filaments 0.4–0.7(–1) mm;

anthers 0.3–0.6 × 0.3–0.4 mm;

styles usually filiform, sometimes slightly subulate, (0.6–)1.2–2.2 mm, shorter than to equaling 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.

ovoid to conic-globose or subobpyriform, 2.5–4.5(–5.2) × 2–4(–5) mm, raised and ± thickened around relatively small to moderately large interstylar aperture, rarely apically narrowed into neck to 1 mm, not translucent, loosely surrounded or capped by withered corolla, indehiscent.

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

2–4, obcompressed to obscurely angled, subglobose to broadly ovoid, 1.3–1.7(–2.2) × 1.2–1.6 mm, hilum region subterminal.

= 60.