Flora of North America species comparison

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

erect, unbranched below inflorescence.

divergent;

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

proximal opposite, distal alternate, ascending;

stipular glands absent;

blade of cauline leaves narrowly elliptic or linear-oblanceolate, 23 × 4 mm, margins entire, not ciliate, apex acute or apiculate.

open panicles.

panicles.

erect in fruit, to 20–25 mm.

0–2.5 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, lanceolate or oblanceolate to obovate, 2.8–3.8 mm, inner broader, somewhat shorter than outer, margins not scarious, entire, apex apiculate;

petals yellow, obovate, 8–11 mm;

stamens 6 mm;

anthers 0.8 mm;

staminodia absent;

styles distinct, length unknown;

stigmas capitate.

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

ovoid, 3.4–3.9 × 3.2–3.5 mm, apex obtuse, dehiscing freely into 10, 1-seeded segments, segments persistent on plant, falling tardily, false septa nearly complete, proximal margins very sparsely and inconspicuously ciliate.

4–6 × 2.5–3 mm.

2.8–3 × 1.2 mm.

= 30.