Flora of North America species comparison

orange-yellow, slender.

white to creamy yellow, 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.

loose to moderately dense, paniculiform or corymbiform;

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

(0.5–)1–5 mm.

1.5–6 mm.

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, 3.5–4.5 mm, membranous, not papillate;

calyx yellow, cupulate, 3/4 to ± equaling corolla tube length, divided 1/2–2/3 its length, finely reticulate, shiny, lobes orbiculate to oblong-obovate, bases overlapping, margins minutely erose or denticulate, membranous, midvein carinate, apex ± truncate, each not exceeded by a hornlike appendage, 0.1–0.2 mm;

corolla creamy white, drying creamy white to reddish brown, 3.2–4 mm, tube campanulate, 1.5–2.2 mm, not saccate, sometimes with horizontal ridges between stamen attachments, lobes erect or spreading to reflexed, oblong-obovate to orbiculate, shorter than to equaling corolla tube length, margins minutely erose or denticulate, membranous, midvein unevenly carinate, apex ± truncate, each with a hornlike appendage 0.1–0.2 mm, not exceeding apex, straight;

infrastaminal scales oblong to ± truncate, 1.5–2 mm, 3/4 to equaling corolla tube length, bridged at 0.4–0.6 mm, uniformly densely fimbriate, fimbriae 0.2–0.4 mm;

stamens exserted, shorter than corolla lobes;

filaments 0.4–1 mm;

anthers 0.7–1 × 0.4–0.5 mm;

styles stout, subulate, 1.8–3.2 mm, 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, 2–2.5 × 2.2–2.5 mm, thickened, not raised around inconspicuous interstylar aperture, not translucent, withered corolla near middle or apical, dehiscence circumscissile.

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

1–4, angled, subglobose to ovoid, 0.9–1.4 × 0.8–1.3 mm, papillate, hilum region terminal.

= 30.