Flora of North America species comparison

orange-yellow, slender.

yellow to orange, medium.

loose to dense, corymbiform;

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

dense, paniculiform-corymbiform or glomerulate;

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

(0.5–)1–5 mm.

(0.5–)1–2.5 mm, sometimes papillate.

5-merous, 2.5–4.5 mm, membranous, not papillate or corolla lobes papillate;

calyx yellow, cylindric to narrowly campanulate, equaling corolla tube length, divided 1/2 its length, not reticulate, ± glossy, lobes lance-ovate to lanceolate, bases not overlapping, margins entire, midvein not carinate, apex acute to acuminate;

corolla white, drying creamy white, 2.2–4 mm, tube cylindric-campanulate to obconic, 1.2–2 mm, not saccate, lobes spreading to reflexed, lance-oblong to lance-ovate, equaling corolla tube length, margins entire or irregular, apex acute to acuminate or cuspidate, sometimes appearing tridentate, straight;

infrastaminal scales oblong to obovate, 1–1.7 mm, 4/5 corolla tube length, bridged at 0.2–0.4 mm, rounded, uniformly densely fimbriate, fimbriae 0.1–0.3 mm;

stamens exserted at full anthesis, shorter than corolla lobes;

filaments 0.3–0.7 mm;

anthers 0.3–0.7 × 0.2–0.5 mm;

styles uniformly filiform, 0.4–0.9 mm, shorter than ovary.

5-merous, 3–5(–5.5) mm, membranous or fleshy at base (receptacle and calyx base), not papillate, or receptacle, calyx, and corolla papillate;

calyx yellow, turbinate-campanulate, 3/4 to equaling corolla tube length, divided 1/2–2/3 its length, finely reticulate, shiny, lobes triangular-ovate to lanceolate, bases overlapping, margins entire, midvein not carinate, apex acute to acuminate;

corolla white, drying creamy white, 3–5 mm, tube cylindric-campanulate to obconic, 1.6–2.4 mm, not saccate or with horizontal ridges between stamen attachments, lobes reflexed, narrowly lanceolate, equaling or longer than corolla tube length, margins entire, apex acute, straight;

infrastaminal scales absent;

stamens exserted, shorter than corolla lobes;

filaments 0.6–1.1 mm;

anthers 0.6–1 × 0.3–0.5 mm;

styles filiform, 1.2–2.2 mm, equaling or longer than ovary.

ellipsoid-ovoid, 1.6–2.5 × 1.7–2.4 mm, thickened and raised around relatively small interstylar aperture, not translucent, surrounded or capped by withered corolla, indehiscent.

globose, depressed-globose, or ovoid-conic, sometimes apically pointed, 1.5–2.2 × 1.8–2.5 mm, not thickened around relatively small interstylar aperture, interstylar aperture sometimes ± visible, not translucent, completely surrounded by, not capped by, withered corolla, indehiscent.

1, ± obcompressed, broadly ellipsoid to subglobose, 1.3–1.5 × 1.2–1.4 mm, hilum region subterminal.

1–4, obcompressed, broadly ellipsoid to obovoid, 0.9–1.4 × 0.8–1.2 mm, papillate, hilum region lateral.

= 30.