Flora of North America species comparison

orange-yellow, slender.

light yellow to orange, slender to 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, umbelliform;

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

(0.5–)1–5 mm.

(0.5–)2.5–4 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.

(4 or)5-merous, (2.8–)3–4(–5) mm, membranous, receptacle and base of perianth fleshy, not papillate;

calyx golden yellow to brownish, narrowly campanulate, equaling corolla tube length, divided 2/3 its length, reticulate and shiny, lobes lanceolate, bases overlapping, margins ± entire, midvein not carinate, apex acute to acuminate;

corolla white, drying brownish yellow, 2.8–4 mm, tube campanulate, 1.3–2 mm, not saccate, lobes reflexed, ovate to oblong, equaling or longer than corolla tube length, margins entire or irregularly denticulate, apex acute, straight;

infrastaminal scales ovate to oblong, 1.3–1.8 mm, equaling corolla tube length, bridged at 0.4–0.6 mm, truncate to rounded, margins uniformly fimbriate, fimbriae 0.1–0.2 mm;

stamens included or slightly exserted, shorter than corolla lobes;

filaments (0–)0.1–0.3 mm;

anthers 0.5–0.8 × 0.3–0.4 mm;

styles uniformly filiform, 0.5–1 mm, 1/2 to equaling 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-ovoid to ovoid, 1.4–2.1 × 1.2–2 mm, not thickened to raised around inconspicuous interstylar aperture, translucent, capped by withered corolla, indehiscent.

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

1, globose-ovoid, 0.9–1.2 × 0.8–1.08 mm, hilum region terminal, embryo base globose-enlarged.

= 30.