Flora of North America species comparison

decumbent to scandent.

blade narrowly lanceolate to lanceolate-oblong, lanceolate-elliptic or ovate, 1.5–14 × 0.5–3.3 cm, margins scabrous, apex acute to acuminate, glabrous.

blade lanceolate to lanceolate-oblong, lanceolate-elliptic or ovate, 1.5–5(–8) cm, 0.5–1.8(–2.2) cm, apex acute to acuminate.

distal cyme 1–several-flowered, usually exserted;

spathes solitary, bright green, without contrasting veins, pedunculate, usually distinctly falcate, (0.5–)0.8–4 × 0.4–1.2(–1.4) cm, margins distinct, glabrous or scabrous, sometimes also sparsely ciliate or ciliolate basally, apex usually acuminate, usually glabrous or nearly so;

peduncles 0.5–2(–4) cm.

proximal cyme 2–4-flowered, distal cyme of larger spathes usually exserted, 1–several-flowered;

spathes solitary, pedunculate, usually distinctly falcate, (0.5–)0.8–2.5(–3.7) × 0.4–1.2(–1.4) cm, apex usually acuminate;

peduncles 0.5–2(–2.9) cm.

bisexual and staminate;

petals all blue (rarely all lavender), proximal petal smaller;

medial stamen anther connective usually with transverse band of violet;

staminodes 2–3;

antherodes yellow, medial often absent or vestigial, cruciform.

blue (rarely lavender);

medial stamen anther connective with broad, transverse band of violet.

3-locular, 2-valved, 4–6.3 mm.

3-locular, 2-valved, 4–6.3 × (2.1–)3–4 mm.

5 (or less through abortion), brown, 2–2.8(–3.2) × 1.4–1.8 mm, deeply reticulate.

5, brown, 2–2.8(–3.2) mm × 1.4–1.8 mm, deeply reticulate.

= 30.