OregonFlora species comparison

± erect; simple or more commonly slender-branched, scabrous and sometimes hirsute, usually stipitate-glandular distally.

mostly cauline;

proximal opposite; most alternate;

blades narrowly spatulate to linear, usually ascending, 6–25+ × 0.5–1.5 mm;

margins entire, usually revolute;

surfaces scabrous; hirsute, strigose, sericeous, or villous;

distal leaves usually stipitate-glandular, sessile.

open; corymb-like arrays or heads solitary.

turbinate to campanulate or hemispheric, 3–6+ mm diameter.

convex, glabrous;

paleae falling, subtending all or most disc florets; outer herbaceous; inner scarious proximal to herbaceous apices.

(2)3–5(8), pistillate, fertile;

corollas whitish;

rays 2–11 mm, veined with purple abaxially.

6–25(60+); bisexual, fertile;

corollas 2–3.5 mm; whitish;

tubes ? funnelform throats;

lobes 5, deltate;

anthers basically dark purple;

styles bristly-puberulent proximal to branches;

branches ~0.2 mm, papillose.

(2)3–5(8); in 1 series, herbaceous; each partially or wholly enveloping subtended ray ovary, lanceolate or oblanceolate, 3–8 mm, abaxially somewhat hirsute and/or stipitate-glandular, falling with fruit.

of ray and disc florets similar, nearly obconic; ± terete, 2–3.5 mm;

basal attachments nearly central;

faces somewhat villous;

tips not beaked;

pappi 0 or of 12–18(26) subulate, fimbriate to ciliate or plumose scales, 0.1–2 mm.

radiate.

=16.