Flora of North America species comparison

villous to lanate, eglandular or densely stipitate-glandular.

erect (usually white, proximally often clothed with marcescent leaves), simple, glabrous or scabrous, villous, or lanate, eglandular, viscid, or stipitate-glandular.

basal;

petioles slender;

blades 3-nerved, linear to narrowly oblanceolate or spatulate, 24–70(–100) × 1.5–9 mm, pliable (abaxial faces ± plane), bases attenuate, margins eciliate, eglandular, apices acute to obtuse, faces villous to lanate (trichomes multicellular), or glabrous adaxially, and/or stipitate-glandular.

basal or cauline; alternate; petiolate;

blades (whitish proximally, green or grayish distally) 1- or 3-nerved (nerves raised abaxially or not), linear to broadly oblanceolate (rigid or pliable), margins entire, sometimes ciliate, eglandular [glandular], faces glabrous, scabrous, or villous to lanate, viscid or stipitate-glandular.

20–155 mm, usually lanate at least immediately proximal to heads, sometimes stipitate-glandular.

broadly campanulate to hemispheric, 13–28 × 9–15 mm.

campanulate to hemispheric, ([6–]9–28 ×) [5–]6–15 mm.

convex, pitted, epaleate.

9–17;

laminae elliptic, 8–14 × 2.5–7 mm.

[0] 5–17, pistillate, fertile;

corollas yellow.

30–45(–57);

corollas funnelform to narrowly vase-shaped, 5.5–8.5 mm, tubes sparsely hairy, lobes 0.7–1.4 mm, ca. 1/8–1/6 length of corollas;

anthers 2.5–3 mm, style-branch appendages subulate to broadly lanceolate, 0.6–1.4 × 0.7 mm, stigmatic lines 0.6–1.8 mm, lengths nearly 2 times appendages.

14–45, bisexual, fertile;

corollas yellow, tubes shorter than narrowly funnelform to vase-shaped, or ± ampliate throats, lobes 5, erect, triangular;

style-branch appendages subulate to lanceolate.

18–37(–64) in 2–3 series, 1- or 3-nerved, scarcely unequal, outer lanceolate to narrowly oblong, 7.5–11.5 × 1–3 mm, mid and inner lanceolate, 8–12.5 × 1–4 mm, proximally rather indurate, distally herbaceous and pliable, margins scarious, sometimes broadly so, often fimbriate, wholly green except for margins or with narrow green portions longer than broad, apices acute to acuminate, abaxial faces villous and/or stipitate-glandular.

10–37(–64) in 2–4 series, 1- or 3-nerved (sometimes keeled proximally), lanceolate or oblong to broadly oblanceolate, unequal to equal, indurate proximally, chartaceous or herbaceous distally, margins scarious, entire or fimbriate (apices acute to obtuse or rounded), abaxial faces sometimes villous, viscid, and/or stipitate-glandular.

borne singly.

radiate [discoid], usually borne singly, sometimes (2–4) in corymbiform arrays.

2.5–5(–6.5) mm, lengths 2/3 disc corollas, faces thinly sericeous;

pappus bristles 40–50, 5–9.5 mm, nearly equaling to slightly longer than disc corollas.

± prismatic to oblanceoloid or linear, often flattened, 6–12-nerved, faces usually sericeous, sometimes glabrous;

pappi persistent, of 30–75, whitish, fine, barbellate, apically attenuate bristles in 1 series (spreading at maturity).

= 9.