Packera bolanderi
Packera multilobata
Bolander's groundsel, Bolander's ragwort
lobeleaf groundsel
1 or 2–3, loosely clustered, glabrous.
1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose.
(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 cauline) petiolate;
blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate.
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually reduced (sessile).
ebracteate or inconspicuously bracteate, glabrous.
conspicuously bracteate, glabrous or tomentose.
8 or 13;
corolla laminae 10–15+ mm.
8–13;
corolla laminae 7–10 mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
40–50+;
corolla tubes 4–5 mm, limbs 3–4 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally).
conspicuous.
conspicuous.
8–15+ in corymbiform or subumbelliform arrays.
10–30+ in open, corymbiform or subumbelliform arrays.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
2–3 mm, glabrous or hirtellous on ribs;
pappi 5–6 mm.
= 46.
= 46, 92.
Packera bolanderi
Packera multilobata
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 multilobata is abundant and widespread west of the Continental Divide. Both morphology and habitat vary. In colder parts of its range, plants are shorter, caudices are better developed with clustered stems, and leaf lobes are larger. In desert-like habitats, basal leaves are narrower and more finely lobed, the tomentum is often persistent, and stems are usually single.
(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 |
OR
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
CA
SW CO Wildflowers
