Flora of North America species comparison

5–30+, horizontal or hanging from cliff sides, thinly appressed gray-tomentose and villous with septate trichomes;

branches 0–few, distal, ascending.

1, fleshy, erect, openly branched in distal 1/2, glabrous;

branches on distal stems several, ascending.

blades oblong-elliptic to oblanceolate, 5–30 × 1–5 cm, shallowly to deeply pinnatifid, lobes spreading, triangular, coarsely dentate or lobed, obtuse to acute, main spines slender, 4–10 mm, abaxial faces green or gray-tomentose, villous with septate trichomes along midveins, ± glabrate, adaxial green and glabrous or thinly tomentose, ± glabrate;

basal often present at flowering, spiny winged-petiolate;

principal cauline sessile, gradually reduced distally;

distal oblong, bases ± clasping, usually less deeply lobed and often spinier than proximal.

blades oblong, 10–50 × 6–12 cm, margins usually not strongly undulate, coarsely dentate or shallowly to deeply pinnatifid with 10–15 pairs of lobes, teeth or lobes ± closely spaced, not much overlapping, narrowly to broadly triangular, spiny-dentate or larger shallowly 3–5-lobed, main spines 2–12 mm, abaxial faces glabrous, adaxial glabrous;

basal present at flowering, petiolate or spiny winged-petiolate;

principal cauline many, well distributed, proximally ± winged-petiolate, distally sessile, gradually reduced, less divided, bases auriculate-claping and/or decurrent as spiny wings to 2 cm;

distal much reduced.

0–1 cm.

0–2 cm Involucres green, ovoid to campanulate (not including spreading phyllary apices), 2.5–4 × 2.5–3.5 cm, appearing glabrous.

cylindric to narrowly campanulate, 3.5–4.5 × 1.5–2 cm, loosely arachnoid, glabrate, finely short-ciliate.

red to reddish purple, 26–27 mm, tubes 3.5–5 mm, throats 7.5–9.5 mm, lobes 12–14 mm;

style tips ca. 3 mm.

lavender-pink, 20–26 mm, tubes 5–8.5 mm, throats 5.2–8 mm, lobes linear, 9–10 mm;

style tips 3.5–4.2 mm, conspicuously exserted beyond corolla lobes.

in 5–6 series, imbricate, linear-lanceolate (outer) to linear (inner), entire, abaxial faces without glutinous ridge, apices red to reddish purple, stiffly ascending, long-acuminate, spines straight, 1–10 mm, ± flattened;

apices of inner stramineous to red, straight or flexuous.

in 5–7 series, unequal, outer longer than inner, bases short-appressed, abaxial faces without glutinous ridge, minutely scabridulous, apices green, thick, spreading to curved-ascending, proximally flattened, linear, spines stout, 5–12 mm;

outer entire or pinnately spiny, inner entire, scabridulous-ciliolate;

apices of inner flexuous, sometimes slightly expanded and minutely erose.

1–6+, borne singly or in condensed corymbiform arrays.

several–many, erect or nodding, usually sessile or short-pedunculate, crowded in subcaptitate or short, spiciform clusters at branch tips, collectively forming open, paniculiform arrays.

stramineous, 5–6 mm, apical collars not differentiated;

pappi 20–25 mm.

dark brown, 4.5–5 mm, apical collars not differeniated;

pappi ca. 20 mm.