Flora of North America species comparison

at nodes.

decumbent to scandent.

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-elliptic or lanceolate-oblong, 2.5–10.5 × 0.7–2.4 cm, margins scabrous, apex acute to acuminate, glabrous.

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.

distal cyme vestigial, included (rarely 1-flowered and exserted);

spathes solitary, bright green, paler basally, without contrasting veins, pedunculate, not at all to slightly falcate, 1.2–3(–3.7) × 0.5–1 cm, margins distinct, usually ciliate, apex acuminate, glabrous or very sparsely pilose;

peduncles 0.6–2.3 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.

bisexual;

petals all blue, proximal petal white medially, smaller;

medial stamen with white connective;

staminodes 3;

antherodes yellow, often with central maroon spot, cruciform.

3-locular, 2-valved, 4–6.3 mm.

3-locular, 2-valved, (5–)6–8 mm.

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

5, dark brown, 2.4–4.3(–4.6) × (1.6–)2–2.3 mm, smooth to faintly alveolate, mealy.

= ca. 86.