Flora of North America species comparison

yellow, slender.

greenish yellow to purple, spotted, coarse.

loose, umbelliform;

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

spikes, racemes, or loose panicles with 1–3(–5)-flowered cymes, flowers sessile or short-pedicellate;

bracts at base of clusters and pedicels 1, ovate, margins entire, apex obtuse.

0–2 mm.

0–2 mm.

4- or 5-merous, 2.8–3.3 mm, membranous, not papillate;

calyx slightly zygomorphic, creamy yellow, broadly campanulate, 1-1/3–1-1/2 corolla tube length, divided 1/2–3/5 its length, not reticulate or shiny, lobes ovate, bases not overlapping, margins entire, midvein not carinate, apex long-attenuate;

corolla white, drying creamy yellow, 2.6–3 mm, tube campanulate, 1.2–1.5 mm, not saccate, lobes suberect, triangular-ovate, longer than corolla tube length, margins entire, apex lance-attenuate, straight;

infrastaminal scales relatively poorly developed, oblong, 0.6–1 mm, 1/2–3/4 corolla tube length, bridged at 0.2–0.3 mm, usually reduced to denticulate wings, rarely 2-fid with 1–3 fimbriae on each side of filament attachments, 0.1–0.2 mm;

stamens included or barely visible through corolla sinuses, shorter than corolla lobes;

filaments 0.2–0.5 mm;

anthers 0.2–0.4 × 0.2–0.3 mm;

styles terete to slightly subulate, 0.3–0.7 mm, 1/4 ovary length.

5-merous, 4–5 mm, thick and fleshy, not papillate;

calyx yellow-brown, globose-campanulate, equaling corolla tube length, divided 2/3 its length, not reticulate or shiny, lobes ovate to orbiculate, bases overlapping, margins entire, partly hyaline, midvein sometimes ± carinate or thickened, apex rounded;

corolla white, drying yellow-brown, 3.8–4.8 mm, tube cylindric-campanulate, 2.8–3.5 mm, not saccate, lobes erect to spreading, ovate to suborbiculate, 1/4–1/3 tube length, margins entire, apex rounded;

infrastaminal scales oblong to ovate, 1.5–2 mm, 1/2–2/3 corolla tube length, bridged at 0.5–1 mm, 2-fid or with coarse fimbriae distally, 0.1–0.4 mm;

stamens included, shorter than corolla lobes;

filaments 0.1–0.3 mm;

anthers 0.3–0.5 × 0.3–0.5 mm;

styles 1, sometimes distally 2-fid or separating into 2 when pulled apart, 1–1.2 mm, ± equaling or longer than ovary, longer than stigmas;

stigmas depressed-globose, 0.1–0.5 mm.

ellipsoid-ovoid, ovoid-conic, or globose to depressed-globose, 2–3.2 × 2–3.6 mm, not thickened or raised around relatively small interstylar aperture, translucent, proximal 1/2 surrounded by withered corolla, indehiscent.

globose-ovoid to conic, 5–7(–10) × 3–5(–6) mm, not translucent, capped by withered corolla.

2–4, obcompressed, subglobose, 0.8–1.1 × 0.8–1 mm, hilum subterminal.

4, angled, broadly ellipsoid to ellipsoid or obovoid, 3–3.9 × 2.2–2.5 mm, hilum area lateral.