Packera bolanderi
Packera greenei
Bolander's groundsel, Bolander's ragwort
flame ragwort
1 or 2–3, loosely clustered, glabrous.
1, irregularly lanate or 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 orbiculate, ovate, oblanceolate, or rhombic, 20–50+ × 20–40+ mm, bases tapering, sometimes obtuse, margins coarsely dentate to crenate-dentate.
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).
ebracteate or inconspicuously bracteate, glabrous.
bracteate, lanate or tomentose distally.
8 or 13;
corolla laminae 10–15+ mm.
8–10(–13);
corolla laminae (red-orange) 8–15+ mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
35–65+;
corolla tubes 4–5 mm, limbs 5–6 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.
conspicuous.
conspicuous.
8–15+ in corymbiform or subumbelliform arrays.
1–3+.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1.5–2.5 mm, glabrous;
pappi 8–11 mm.
= 46.
= 40, 46, 92.
Packera bolanderi
Packera greenei
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.)
Of conservation concern.
Packera greenei is known from Coast Ranges of northern California. It has relatively large heads and bright orange-red ray corollas; its leaves are usually cyanic abaxially.
(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
