Flora of North America species comparison

thin.

dimorphic, glaucous;

basal leaves tapered into long petiole, linear-spatulate;

distal cauline leaves sessile, broadly to narrowly lanceolate, 6–20 cm, base commonly cordate-clasping, apex acute to acuminate.

spirally arranged;

blade occasionally sessile [usually petiolate], glaucous.

terminal, cymes solitary;

bracteoles 3–5 mm.

terminal or terminal and axillary, 1[–several] elongate cyme[s], [occasionally axillary and perforating sheaths], subtended by spathaceous bract;

bract leaflike;

bracteoles persistent.

2–2.5 cm wide;

sepals boat-shaped, 9–12 mm, glabrous;

proximal petal white, rhombic, 3–4 mm;

distal petals blue to lavender, obovate, 15–18 mm;

proximal lateral stamens with purple hairs;

distal stamens bearded with yellow-tipped hairs;

ovules 2 per locule.

bisexual [bisexual and staminate], bilaterally symmetric;

pedicels well developed;

sepals distinct, subequal;

petals distinct, unequal, not clawed, proximal petal small [large], distal 2 blue or blue-violet [white to pink], equal, large;

stamens 6, all fertile, polymorphic;

proximal 3 stamens long, lateral filaments bearded;

medial glabrous, anthers large;

distal 3 stamens short, filaments densely bearded, anthers small;

filaments connate basally;

ovary 3-locular;

ovules 2–several per locule, 1-seriate.

oblong, 6–8 mm.

3-valved, 3-locular.

gray-brown.

2–several per locule;

hilum linear;

embryotega lateral.

= 13, 14, 16, 17.

= 26.