Packera bolanderi
Packera macounii
Bolander's groundsel, Bolander's ragwort
long-ray groundsel, Macoun's butterweed, Macoun's groundsel, Puget butterweed, Siskiyou Mountain ragwort, Siskiyou Mountains ragwort
1 or 2–3, loosely clustered, glabrous.
1, sparsely to densely tomentose or glabrescent.
(and proximal cauline) petiolate;
blades ± orbiculate to oblong, or lyrate (lateral lobes 1–3 pairs, sinuses usually rounded, midribs usually winged), 50–120+ × 30–70+ mm, bases cordate to subcordate, margins shallowly to deeply incised.
(and proximal) petiolate;
blades lanceolate to oblanceolate, 30–50+ × 10–20 mm, bases tapering, margins entire or shallowly toothed (slightly revolute).
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually reduced (distal sessile, bractlike).
ebracteate or inconspicuously bracteate, glabrous.
inconspicuously bracteate or ebracteate, sparsely tomentose to glabrate.
8 or 13;
corolla laminae 10–15+ mm.
8(–13);
corolla laminae 8–10+ mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
30–40+;
corolla tubes 2.5–3.5 mm, limbs 2–3 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13 or 21, green, 5–7+ mm, glabrous.
conspicuous.
0 or inconspicuous.
8–15+ in corymbiform or subumbelliform arrays.
6–15+ in corymbiform arrays.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1.5–2 mm, glabrous;
pappi 4–5 mm.
= 46.
= 46, 92.
Packera bolanderi
Packera macounii
Varieties 2 (2 in the flora).
The two varieties of Packera bolanderi have been treated as species. The morphologic characteristics used to distinguish the varieties vary widely within some populations. Presence or absence of multicellular hairs has been used to separate the varieties; that trait is also variable. The morphologic distinction is weak; habitat and elevation records lend support for recognizing two varieties.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Packera macounii is similar in overall morphology to P. cana. Leaves of P. macounii are narrower and frequently revolute. It is often cited as being collected on serpentine soils; it is not restricted to them. Senecio fastigiatus Nuttall (1840) is a later homonym of S. fastigiatus Schweinitz ex Elliott (1823), a name of uncertain application.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Basal leaves (relatively thick and turgid); phyllaries 13 or 21, 6–8+ mm, hairy proximally (hairs tan or brownish, multicelled) | var. bolanderi |
1. Basal leaves (relatively thin); phyllaries 8, 13, (or 21), 5–6 mm, glabrous | var. harfordii |
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
