Flora of North America species comparison

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

spreading to ascending or erect, branched from base.

divergent;

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

proximalmost opposite, middle and distal alternate, closely imbricate, proximal leaves spreading-ascending, distal strongly appressed;

stipular glands absent;

blade linear-lanceolate, 5–9 × 0.5–1.2 mm, margins entire, distal leaves sparsely ciliate, apex short-awned;

midrib cartilaginous.

open panicles.

panicles;

bracts ciliate.

erect in fruit, to 20–25 mm.

2–11 mm.

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.

sepals persistent, ovate, 4.2–6.1 mm, margins broad, purplish, scarious, prominently toothed distally, not glandular-toothed, apex conspicuously awn-shaped;

petals yellow, with or without dark red base, obovate, 6.5–8 mm;

stamens 5 mm;

anthers 0.6–1.2 mm;

staminodia absent;

styles connate to within 0.3–0.8 mm of apex, 2–4.3 mm;

stigmas capitate.

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

broadly ovoid, 2.6–3 × 2.9–3.3 mm, apex rounded, dehiscing into 5, 2-seeded segments, segments persistent on plant, false septa hyaline, with cartilaginous portion conspicuously broader near base, proximal margin appressed-pilose, otherwise glabrous.

4–6 × 2.5–3 mm.

2–2.6 × 1.1–1.5 mm.

= 30.

= 30.