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.

single, erect, often branched above middle, thinly arachnoid-tomentose, ± glabrate;

branches few, 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 elliptic or ovate, 5–20 × 1–10 cm, usually deeply pinnatifid, lobes narrowly to broadly triangular, sinuses broad, rounded (basal and distal cauline sometimes less divided, lobes linear-lanceolate), margins revolute, spreading, entire or spinulose to remotely few-toothed or sharply lobed, main spines slender, 1–5 mm, abaxial faces white-tomentose, adaxial green, villous with septate trichomes or glabrate;

basal usually absent at flowering, winged-petiolate, bases tapered;

principal cauline well distributed, gradually reduced, bases narrowed, sometimes weakly clasping;

distal reduced, widely separated, distalmost bractlike.

0–1 cm.

2–20+ cm, essentially naked with much reduced bracts.

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

ovoid to broadly cylindric or campanulate, 2.5–3.5 × 2–3 cm, thinly arachnoid.

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.

pink to purple (white), 32–38 mm, tubes 15–20 mm, throats 6–9 mm, lobes 8–11 mm;

style tips 5–6 mm.

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 10–12 series, strongly imbricate, greenish with subapical darker central zone, ovate (outer) to lanceolate (inner), abaxial faces with narrow glutinous ridge;

outer and middle entire, bodies appressed, spines abruptly spreading to deflexed, slender, 2–4 mm;

apices of inner phyllaries narrow, flexuous, flattened, entire or finely erose.

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

1–10+, borne at tips of main stem and branches.

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

pappi 20–25 mm.

brown, 5–6 mm, apical collars yellow, ca. 1 mm;

pappi 25–30 mm.

= 18 (as C. terrae-nigrae), 20 + 1B.