Flora of North America species comparison

erect, branched from base and throughout, bushy.

erect, unbranched or few-branched at base (all flowering).

alternate, spreading to ascending;

stipular glands absent;

blade linear, 10–28 × 1–1.5 mm, margins entire or sparsely toothed on distal leaves, not ciliate, apex acute.

divergent;

blade linear to linear-lanceolate, 10–40 × 1.5–5 mm.

dense panicles.

open panicles.

2–7 mm.

erect in fruit, to 20–25 mm.

sepals tardily deciduous, lanceolate, 5–9 mm, margins narrowly scarious, conspicuously glandular-toothed, apex acute to acuminate;

petals yellow, obovate, 6–11 mm;

stamens 4–6 mm;

anthers 0.4–0.8 mm;

staminodia absent;

styles connate nearly to apex, 2.5–4 mm;

stigmas capitate.

homostylous;

sepals ovate, 6–9 mm, margins of inner sepals minutely ciliate, outer ciliate, apex acuminate;

petals usually blue, rarely white, obovate, 10–15 mm;

stamens 5–7 mm;

anthers 1–1.5 mm;

staminodia present;

styles distinct or connate at base, 3–6 mm;

stigmas linear or clavate.

ovoid, 3.5–4.4 × 2.7–3.5 mm, apex obtuse, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa complete, proximal part membranaceous, not terminating in loose fringe, distal part cartilaginous, margins not or only minutely ciliate.

ovoid to subglobose, 6–10 × 5–10 mm, apex rounded, dehiscing incompletely, segments falling freely, margins ciliate or not.

2.6–3.1 × 1–1.3 mm.

4–6 × 2.5–3 mm.

= 30.

= 30.