Packera quercetorum
Packera greenei
Oak Creek ragwort
flame ragwort
1 or 2–4, clustered (proximally deeply purple-tinged, distally lightly tinged), glabrous or tomentose at bases and in leaf axils.
1, irregularly lanate or tomentose.
(and proximal cauline) petiolate;
blades obovate or lyrate (pinnately lobed, lateral lobes 2–6+ pairs, their bases petioluliform, terminal lobes larger than laterals, midribs narrowly winged), 60–160+ × 20–40+ mm, bases wide, ultimate margins sharply dentate, crenate-dentate, or irregularly 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; shallowly lobed, midribs ± winged, distals bractlike, dentate to incised).
gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).
ebracteate, glabrous.
bracteate, lanate or tomentose distally.
(8–)13;
corolla laminae 6–10+ mm.
8–10(–13);
corolla laminae (red-orange) 8–15+ mm.
60–70+;
corolla tubes 2–3 mm, limbs 3.5–4.5 mm.
35–65+;
corolla tubes 4–5 mm, limbs 5–6 mm.
(13–)21, green (tips yellow), 5–7 mm, glabrous (tips sometimes hairy).
21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.
inconspicuous.
conspicuous.
15–40+ in open, cymiform arrays.
1–3+.
1.5–2 mm, glabrous or ± scabrellous;
pappi 5.5–6.5 mm.
1.5–2.5 mm, glabrous;
pappi 8–11 mm.
= 92.
= 40, 46, 92.
Packera quercetorum
Packera greenei
Packera quercetorum is found only infrequently and in relatively small populations in central and southern Arizona and west-central New Mexico. The plants are robust and have probable affinities to P. multilobata. The plants have a bluish tinge when freshly collected and are distinctive in the field.
(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.)
WildflowerSearch
iNaturalist
USDA Plants Database
CA
