Flora of North America species comparison

(commonly branched in distal 1/4) glabrous or densely spreading-hirtellous, not glaucous.

(erect, stout) glabrous, glaucous.

spreading to ascending;

blades 3- or 5-nerved, linear to lanceolate, 37–130 × (2.1–)3–12 mm, lengths 7–20 times widths, abruptly to gradually reduced distally, herbaceous to firm-herbaceous, margins scabro-ciliate, apices obtuse to acuminate, faces usually little and obscurely gland-dotted (26–47 dots per mm²), barely viscid (more so on exposed shores), glabrous or densely spreading-hirtellous.

spreading-ascending to erect;

blades 3- or -5-nerved, linear, 82–100 × 4.3–10 mm, lengths 10–27 times widths, gradually to abruptly reduced distally, herbaceous to firm-herbaceous, margins scabrous, apices abruptly acute to acuminate, faces ± gland-dotted (18–56 dots per mm²), adaxial and vein axils often sparsely hairy.

broadly campanulate to campanulate, 3–5.3 mm.

campanulate, 3.7–4.9 mm.

(7–)17–22(–35).

(15–)17–22(–28).

(3–)5–7(–13);

corollas 2.6–3.4 mm.

(7–)9–11(–18);

corollas 3.1–4.2 mm.

often ± yellow basally, outer (at least) usually green-tipped, outer ovate, inner oblong, apices obtuse or broadly acute.

stramineous, sometimes green-tipped, outer narrowly lanceolate, inner linear (firm), apices acute to acuminate.

glomerulate, usually in flat-topped arrays (1.5–28 cm diam.), 10–28% of plant heights (branches unequal, giving irregular, broken appearance).

mostly pedunculate, in relatively narrow, elongate arrays 33–60% of plant heights (often interrupted and with multiple levels).

= 18.

= 18.