Flora of North America species comparison

1–5+, flexuous, sparsely to moderately hairy in arrays.

1–5+, erect to arching, puberulent in arrays and in lines proximal to leaf bases or uniformly.

rosettes present at flowering;

basal and proximal cauline tapering to winged petioles, blades ovate, (70–)100–140(–180) × (27–)40–60(–80) mm (petioles 1/4–1/2 total leaf length), margins serrate-serrulate [teeth (14–)21–33(–45)], abaxial faces glabrous or moderately hairy, more densely so on nerves, adaxial glabrous or sparsely hairy;

mid to distal cauline sessile, blades narrowly ovate to lanceolate, 38–90(–150) × 10–30(–55) mm, reduced distally, becoming lanceolate in arrays, bases tapering, margins entire to serrate, apices acuminate to cuspidate, faces glabrous or sparsely hairy, abaxial glabrous or moderately hairy, more densely so along nerves.

usually anise-scented when crushed;

basal and proximal usually withering by flowering, tapering to broadly winged petioles, blades oblanceolate, margins entire, short-strigillose, faces glabrous or short scabroso-strigillose along main nerves;

mid and distal cauline sessile, blades lanceolate to linear-lanceolate or narrowly ovate, 30–110 × 8–20 mm, much reduced distally, bases rounded, margins entire, midnerves prominent, sometimes scabroso-strigillose basally to much of length, apices acute, faces glabrous, finely translucent gland-dotted.

0.5–5 mm, moderately to densely strigose;

bracteoles 1–3, lanceolate, usually near base of involucres and grading into phyllaries.

thin, 2–8 mm, glabrate to finely puberulent, glabrous strips proximal to few linear-lanceolate bracteoles.

campanulate, 4.5–7(–8) mm.

narrowly campanulate, 3.5–5 mm.

1–5;

laminae (2–)2.5–4(–5) × 0.7–2 mm.

3–4(–6);

laminae 1.4–2.5 × 0.4–0.9 mm.

4–8(–11);

corollas 2–3(–4) mm, lobes 1–1.6(–2) mm.

3–5;

corollas 2.7–3.5 mm, lobes 0.5–1.3 mm.

in ca. 3 series, strongly unequal, outermost 1–2 mm, innermost 3.7–4.7(–5.7) mm, linear-oblong, 1-nerved, apices obtuse to acute.

in 3–4 series, strongly unequal, yellowish, acute, glabrous;

outer narrowly ovate to lanceolate, inner lanceolate to linear-lanceolate.

25–250, in short axillary and terminal racemiform clusters, lateral panicles (2–)7–31(–56) cm.

(20–)75–350, in paniculiform arrays, openly secund, pyramidal, proximal to mid branches ascending to spreading, recurved, secund, 3–18 cm.

(obconic) 1–2(–3) mm, moderately to densely strigose;

pappi 3–4.5 mm.

(obconic) 1.4–2.3 mm, strigose to glabrate;

pappi 2.4–3 mm.

= 18, 36.