Packera anonyma
Packera bolanderi
Small's ragwort
Bolander's groundsel, Bolander's ragwort
1 or 2–5, loosely clustered, bases densely tomentose, leaf axils usually tomentose.
1 or 2–3, loosely clustered, glabrous.
petiolate;
blades narrowly elliptic to oblanceolate, 30–90+ × 10–20+ mm, bases tapering, margins serrate to crenate-serrate (apices rounded to acute, faces 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.
gradually reduced (petiolate or sessile; elliptic to lanceolate, often pinnatifid).
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
bracteate, distally tomentose.
ebracteate or inconspicuously bracteate, glabrous.
8 or 13;
corolla laminae 5–7+ mm.
8 or 13;
corolla laminae 10–15+ mm.
45–60+;
corolla tubes 1.5–2 mm, limbs 1.5–2 mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
13 or 21, light green, 3–5 mm, glabrous.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
inconspicuous.
conspicuous.
20–70(–100+) in corymbiform arrays.
8–15+ in corymbiform or subumbelliform arrays.
0.75–1 mm, hirsute on ribs;
pappi 2.5–3 mm.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
= 44.
= 46.
Packera anonyma
Packera bolanderi
Packera anonyma is common, almost weedy throughout most of its range. It grows on serpentine in Maryland, Ohio, and Pennsylvania. In western parts of its range, putative hybrids between P. anonyma and P. plattensis and P. tomentosa have been reported.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
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 |
LA Plants
MD Biodiversity
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