Flora of North America species comparison

orange-yellow, slender.

orange, slender.

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, umbelliform to subglomerulate;

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.

0.5–2 mm, sometimes with domelike cells.

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, 3.5–6 mm, membranous, papillate or corolla lobes, sometimes calyx, with domelike cells;

calyx creamy yellow, usually drying dull brown, rarely drying yellow, campanulate to cupulate, equaling corolla tube length, divided 2/3 its length, not reticulate or shiny, lobes ovate-triangular, bases slightly overlapping, margins entire, midvein not carinate, apex acute to acuminate;

corolla white, generally drying dark brown (rarely creamy yellow), 2.8–5.4 mm, tube campanulate, 1.5–2.6 mm, not saccate, lobes erect to spreading, broadly ovate to rhombic-ovate, equaling corolla tube length, bases overlapping, margins entire or irregular, apex usually acute to cuspidate, sometimes appearing tridentate, straight;

infrastaminal scales oblong to slightly obovate, 1–1.5 mm, 1/2–3/4 corolla tube length, bridged at 0.3–0.5 mm, with few short fimbriae 0.05–0.1 mm;

stamens included in completely open flower, shorter than corolla lobes;

filaments 0.3–0.6 mm;

anthers 0.3–0.6 × 0.3–0.5 mm;

styles filiform, 0.4–0.9 mm, shorter 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.

ovoid, 2–3.6 × 1.4–2.1 mm, thickened around relatively small interstylar aperture, not translucent, surrounded by withered corolla, indehiscent.

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

1 or 2, ± obcompressed, broadly ellipsoid to subglobose, 1.4–1.9 × 1.2–1.4 mm, hilum subterminal.

= 30.