Packera bolanderi
Packera crocata
Bolander's groundsel, Bolander's ragwort
saffron ragwort
1 or 2–3, loosely clustered, glabrous.
usually 1, rarely 2–3, clustered, 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.
(and proximal cauline) petiolate (petioles narrow);
blades narrowly lanceolate or ovate to oblong-ovate, 20–60+ × 10–40+ mm, bases abruptly contracted to tapering, margins subentire to crenate-dentate.
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually reduced (sessile, weakly clasping; lanceolate to oblong or sublyrate, often pinnately lobed).
ebracteate or inconspicuously bracteate, glabrous.
ebracteate or bracteate (bractlets inconspicuous), glabrous.
8 or 13;
corolla laminae 10–15+ mm.
8 or 13;
corolla laminae (deep yellow to orange-red) 6–8+ mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
60–80+;
corolla tubes 4.5–5.5 mm, limbs 2.5–3.5 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13 or 21, light green (or tips cyanic), 4–8 mm, glabrous.
conspicuous.
0 or inconspicuous.
8–15+ in corymbiform or subumbelliform arrays.
7–15+ in open, corymbiform arrays.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1–1.5 mm, glabrous;
pappi 3–5 mm.
= 46.
= 46.
Packera bolanderi
Packera crocata
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 crocata is characterized by deep yellow to reddish orange corollas. Some collectors have noted that there may be evidence for hybridization between P. crocata and P. dimorphophylla; the relationship between the two species needs further study.
(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
CalFlora
SW CO Wildflowers
