Packera bolanderi
Packera ogotorukensis
Bolander's groundsel, Bolander's ragwort
Ogotoruk Creek butterweed, Ogotoruk Creek ragwort
1 or 2–3, loosely clustered, glabrous.
1 (often branched proximally, sometimes distally), sparsely to densely floccose-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.
petiolate;
blades elliptic to oblanceolate or ovate, 20–80+ × 20–60+ mm, bases tapering, margins entire, crenate-serrate, or irregularly to pinnately lobed (abaxial faces white-tomentose, adaxials patchy tomentose to glabrate).
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually to abruptly reduced (sessile; mids lanceolate to oblanceolate, irregularly serrate to pinnately lobed, distals bractlike).
ebracteate or inconspicuously bracteate, glabrous.
bracteate, ± tomentose.
8 or 13;
corolla laminae 10–15+ mm.
10–13+;
corolla laminae 8–12+ mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
60–70+;
corolla tubes 1–1.5 mm, limbs 2–2.5 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13 or 21, green (sometimes with purple streaks, tips usually purple), 4–8 mm, proximally tomentose, rarely glabrous.
conspicuous.
conspicuous (bractlets purple-tinged).
8–15+ in corymbiform or subumbelliform arrays.
1(–3).
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1–1.5 mm, glabrous;
pappi 2.5–3 mm.
= 46.
= 92.
Packera bolanderi
Packera ogotorukensis
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.)
Plants of Packera ogotorukensis have been treated as a disjunct of P. conterminus (as Senecio conterminus). Gross morphology, cytological data, and pollen morphology all provide good evidence for recognition of P. ogotorukensis as a distinct species.
(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
BC
