Packera breweri
Packera indecora
Brewer's ragwort
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
1, glabrous or leaf axils tomentose.
1 or 2–3, loosely clustered, glabrous or glabrate.
(and proximal cauline) petiolate;
blades spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).
petiolate;
blades elliptic-ovate, oblong, or subreniform, 20–50 × 10–40+ mm, bases subcordate, truncate, or cuneate, margins usually crenate-dentate to coarsely dentate-lacerate, seldom subentire.
gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
usually ebracteate (rarely with 1–2 bractlets), glabrous.
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
8–10+;
corolla laminae 10–15+ mm.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
45–60+;
corolla tubes 3–3.5 mm, limbs 4–4.5 mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
13 or 21, green, 7–9+ mm, glabrous.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
inconspicuous.
conspicuous (bractlets green, tips sometimes reddish).
15–50+ in corymbiform arrays.
8–20+ in subumbelliform arrays.
2–2.5 mm, glabrous;
pappi 6–7 mm.
1–2 mm, glabrous;
pappi 3–4 mm.
= 46.
= 46, 126, 176, 184.
Packera breweri
Packera indecora
Packera breweri is known only from Coast Ranges from San Francisco Bay to Los Angeles County and along the eastern edges of the San Joaquin Valley. Populations are relatively small and sporadic; the plants appear not to hybridize with other species of Packera.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Packera indecora is found at relatively low elevations in eastern Canada and at middle to subalpine elevations in the western cordillera. It closely resembles P. pauciflora and it is often difficult to identify specimens in the herbarium. Biosystematic studies (J. F. Bain and J. Whitton 1994) have indicated that although they are morphologically similar, P. indecora and P. pauciflora have distinctly different physiologies and should be maintained as distinct taxa.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
BC
WA
Flora NW
MI Flora
MN Wildflowers
PNW Herbaria
