Flora of North America species comparison

branched, with 1 or 2 nodes, 0.8–1.9 mm wide, usually glabrous, margins entire, similar in color and texture to stem body;

first internode 11–36 cm, longer than leaves;

distalmost node with 2–3 branches.

simple or branched, with 1 node, 1.1–1.9 dm wide, glabrous, margins entire, usually same color and texture as stem body but occasionally drying lighter;

internode 17.2–21.3 cm, equaling or shorter than leaves, with 2 branches.

blades usually glabrous, bases occasionally becoming fibrous, but not persistent in tufts.

blades glabrous, bases not persistent in fibrous tufts.

borne singly;

spathes green or occasionally with purplish tinge on margins, obviously wider than supporting branch, glabrous or slightly scabrous, keels entire;

outer 12–16.1 mm, 1.4 mm shorter to 1.5 mm longer than inner, tapering evenly towards apex, margins basally connate 3–5.2 mm;

inner with keel evenly curved or straight, hyaline margins 0.2–0.6 mm wide, apex broadly rounded to truncate, usually erose, ending 0–0.5 mm proximal to green apex or, occasionally, exceeding it by up to 0.5 mm.

borne singly;

spathes green, obviously wider than supporting branch, glabrous, keels entire;

outer 13–19.6 mm on branched stems, 19.3–25.6 mm on simple stems, 1.2 mm longer to 2 mm shorter than inner on branched stems, 1.5–4.2 mm longer than inner on simple stems, tapering evenly towards apex, margins basally connate 3.9–6.1 mm;

inner with keel evenly curved, hyaline margins 0.2–0.5 mm wide, apex acuminate to acute, ending 0.2–0.8 mm proximal to green apex on branched stems, sometimes lobed and exceeding green apex on simple stems.

tepals light blue or bluish violet to purple or occasionally white, bases yellow;

outer tepals 6.3–11 mm, apex emarginate to truncate, aristate;

filaments connate ± entirely, stipitate-glandular basally;

ovary blackish, in contrast with much lighter foliage.

tepals light blue, bases yellow;

outer tepals 5–13 mm, apex rounded, short-aristate;

filaments connate ± entirely, stipitate-glandular basally;

ovary similar in color to foliage.

dark brown to black or purplish black, ± globose to obovoid, 2–4.1 mm;

pedicel ascending to erect.

light to dark brown, ± globose to ± fusiform, 5–7 mm;

pedicel usually erect.

globose to obconic, lacking obvious depression, 0.5–1.2 mm, rugulose or occasionally granular.

globose to obconic, occasionally with slight depression, 1–1.3 mm, rugulose.

= 16, 32.

= 96.