Flora of North America species comparison

orange-yellow, slender.

yellow to pale 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.

loose, umbelliform;

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

(0.5–)1–5 mm.

(1–)2–3(–5) mm, 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.

(3 or)4-merous, 2.8–4 mm, calyx and corolla papillate;

calyx straw yellow, cylindric, equaling corolla tube length, divided 3/4 its length, ± reticulate, shiny, lobes ovate-triangular, bases not overlapping, margins entire, midvein not carinate, sometimes with multicellular protuberances, apex acute to acuminate;

corolla white, drying creamy white, 3–3.6 mm, tube cylindric, 1.5–2 mm, not saccate, lobes spreading or reflexed, lanceolate, equaling corolla tube length, margins entire, apex acute, straight;

infrastaminal scales truncate to slightly obovate, 0.8–1.2 mm, 1/4–1/3 corolla tube length, bridged at 0.1–0.2 mm, distally fimbriate, fimbriae 0.1–0.2 mm;

stamens exserted, shorter than corolla lobes;

filaments 0.5–0.8 mm;

anthers 0.3–0.5 × 0.2–0.3 mm;

styles filiform, 0.8–2.5 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 to depressed-globose, 1.5–2.2 × 0.7–1.5 mm, thickened and slightly raised or with 2–4 protuberances around relatively small interstylar aperture, translucent, capped by withered corolla, dehiscence circumscissile.

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

2–4, angled, subglobose to broadly elliptic, 0.8–1.1 × 0.7–0.8 mm, hilum subterminal.

= 30.