Packera bolanderi
Packera tampicana
Bolander's groundsel, Bolander's ragwort
Great Plains ragwort
1 or 2–3, loosely clustered, glabrous.
1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely 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 oblanceolate to spatulate (usually pinnately lobed, lateral lobes 1–6+ pairs, their bases petioluliform, terminal lobes usually larger than laterals, often reniform to ± orbiculate, midribs sometimes ± winged and/or toothed between the primary lobes), 40–120+ × 10–30+ mm, bases ± cuneate, ultimate margins subentire or irregularly crenate, dentate, or lobed.
gradually reduced (petiolate or sessile and clasping; lanceolate, incised).
gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).
ebracteate or inconspicuously bracteate, glabrous.
bracteate, glabrous.
8 or 13;
corolla laminae 10–15+ mm.
8 or 13;
corolla laminae 3–7 mm.
30–45+;
corolla tubes 3–4 mm, limbs 3.5–4.5 mm.
30–45(–100+);
corolla tubes 1.5–2.5 mm, limbs (1.5–)2.5–3.5 mm.
(8), 13, or 21, dark green, 5–8 mm, glabrous or sparsely tomentose proximally.
13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.
conspicuous.
inconspicuous or 0.
8–15+ in corymbiform or subumbelliform arrays.
4–25+ in corymbiform arrays.
2.5–3.5 mm, glabrous;
pappi 5–7 mm.
1–1.5 mm, hirtellous on ribs;
pappi 3–5 mm.
= 46.
= 46.
Packera bolanderi
Packera tampicana
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 tampicana is fairly widespread along the Gulf Coastal Plain and north and in Mexico. Morphologically, P. tampicana most closely resembles P. glabella; the former grows in very wet, sandy or clay soils and open sunlight, the latter grows in drier habitats, usually in partial shade.
(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 |
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WA
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