OregonFlora species comparison

erect; simple or branched distally, glabrous or lightly floccose-tomentose.

6–50+ cm, with 1 main vein.

basal and cauline, alternate;

margins irregularly dentate to deeply incised or lobed;

lobes ± entire to dentate;

teeth and lobes spine-tipped;

tips acute or obtuse;

surfaces glabrous or minutely puberulent, white-blotched adaxially;

proximal petiolate;

distal sessile and auriculate-clasping.

solitary heads; terminal or axillary.

3–6 cm including spinetips.

ovoid to globose or hemispheric.

flat, covered with whitish bristles;

paleae 0.

25–100+;

corollas 25–35 mm, exserted from involucres, pink to purple.

bisexual;

corollas tubular, abruptly widened distally;

lobes 5; erect, elongate, linear;

stamens included or slightly exserted;

styles exserted;

stigma lobes minute.

in 4–6 series; erect in flower, spreading in fruit, chartaceous, distally ± herbaceous;

surfaces glabrous; inner equal, lanceolate;

tips with or without terminal spines; outer lanceolate to ovate or round, gradually shorter;

margins spine-fringed;

tips acute to rounded.

6–8 mm, brown to purple, mottled;

surfaces glabrous;

pappi 15–20 mm.

obovoid, tapering toward bases, truncate, pappi of numerous unequal, basally united bristles, deciduous.

discoid.

=18.