Flora of North America species comparison

yellow-orange, medium.

orange-yellow, filiform.

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, corymbiform;

bracts at base of clusters 1, at base of pedicels 0(or 1), ovate-triangular, membranous, margins entire, apex acute.

0–1 mm.

0.5–2.5(–3) 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, 0.9–1.1(–1.5) mm, fleshy, corolla lobes papillate;

calyx brownish yellow, angled, cupulate, equaling corolla tube length, divided 1/2–2/3 its length, ± reticulate, rarely shiny, lobes broadly ovate-rhombic, bases ± auriculate, overlapping, forming prominent angles at sinuses, margins entire, midvein ± carinate, apex rounded;

corolla white, drying cream to brownish, 0.9–1.2 mm, tube campanulate, 0.5–0.7 mm, not saccate, lobes reflexed, triangular-ovate, equaling corolla tube length, margins entire, apex subacute to acute, inflexed;

infrastaminal scales narrowly oblong to obovate, 0.6–0.9 mm, equaling or longer than corolla tube length, bridged at 0.2–0.3 mm, rounded, sparsely fimbriate, fimbriae 0.1–0.3 mm;

stamens exserted, slightly shorter than corolla lobes;

filaments 0.1–0.2 mm;

anthers 0.2–0.3 × 0.2–0.3 mm;

styles filiform, 0.5–0.9 mm, 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.

globose to ovoid, 1.2–2.3 × 1.2–1.6 mm, not thickened around relatively small to moderately large interstylar aperture, ± translucent, withered corolla enveloping 1/4–1/3 of base, indehiscent.

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

1 or 2, subglobose, with longitudinal groove on adaxial face, 0.9–1.1 × 0.8–1.1 mm, hilum region terminal.

= 60.