6.
Chaenactis douglasii
(Hooker) Hooker & Arnott, Bot. Beechey Voy. 354. 1839.
Hoary pincushion, Douglas's dustymaiden
Hymenopappus douglasii
Hooker, Fl. Bor.-Amer. 1: 316. 1833;
Macrocarphus
douglasii
(Hooker) Nuttall
Biennials or perennials,
(2—)5—50(—60) cm (rarely slightly woody or flowering first year, sometimes cespitose or ± matted); proximal indument thinning with age, grayish, mostly arachnoid-sericeous to thinly lanuginose.
Stems
1—25+, erect to spreading.
Leaves
basal, or basal (sometimes withering) and ± cauline, (1—)2—12(—15) cm; largest blades ± elliptic or slightly lanceolate to ovate, ± 3-dimensional, usually 2-pinnately lobed; primary lobes (4—)5—9(—12) pairs, ± congested, scarcely imbricate, ultimate lobes ± involute and/or twisted.
Heads
1—25+ per stem.
Peduncles
mostly ascending to erect, 1—10 cm.
Involucres
obconic to ± hemispheric.
Phyllaries:
longest 9—15(—17) mm; outer usually stipitate-glandular (sometimes sparsely or obscurely, rarely eglandular) and, often, arachnoid to lanuginose and, sometimes, sparsely villous, apices usually ± squarrose, pliant.
Corollas
5—8 mm.
Cypselae
5—8 mm (usually sparsely glandular amidst other indument);
pappi:
longest scales 3—6 mm.
Varieties 2 (2 in the flora): North America.
Chaenactis douglasii
is widespread and variable (see discussion under var.
douglasii
).
