Packera bolanderi
Packera porteri
Bolander's groundsel, Bolander's ragwort
Porter's butterweed, Porter's groundsel
1 or 2–3, loosely clustered, glabrous.
1 (often cyanic), glabrous.
(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.
(relatively turgid, abaxial faces cyanic) petiolate;
blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
abruptly reduced (1–4, sessile; bractlike, entire).
ebracteate or inconspicuously bracteate, glabrous.
ebracteate, glabrous.
8 or 13;
corolla laminae 10–15+ mm.
8 or 13;
corolla laminae 8–10+ mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
40–50+;
corolla tubes 2.5–3.5 mm, limbs 2.5–3.5 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13 or 21, deep red, 8–10+ mm, glabrous.
conspicuous.
conspicuous (bractlets often cyanic).
8–15+ in corymbiform or subumbelliform arrays.
borne singly.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1.5–2.5 mm, glabrous;
pappi 4–5.5 mm.
= 46.
Packera bolanderi
Packera porteri
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.)
Multiple collections of Packera porteri are known from Colorado; single collections are known from Oregon (1899; collector indicated few plants were seen) and Washington (1996).
(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
