Pyrrhopappus grandiflorus
Pyrrhopappus
tuberous desert-chicory
desert-chicory
usually scapiform, usually branching from bases, proximally glabrous or sparsely to densely pilosulous.
usually 1, sometimes 2–5+, erect, unbranched or branched proximally and/or distally, glabrous or pilosulous.
basal or basal and cauline;
basal ± petiolate, distal usually sessile;
blades oblong, elliptic, or ovate to lanceolate or linear, margins entire or dentate to pinnately lobed (faces usually glabrous, sometimes pilosulous near margins).
0(–3), proximal mostly lanceolate, margins usually pinnately lobed, distal linear-filiform, margins entire.
not inflated distally, sometimes bracteate.
cylindric to turbinate, 17–25 mm.
cylindric, 4–5[–8+] mm diam.
± convex, pitted, glabrous, epaleate.
40–60+;
anthers 4.5–5 mm (pollen equatorial diameters 46–52 µm).
(20–)30–150+;
corollas yellow to whitish.
13–22.
8–21+ in ± 2 series (reflexed in fruit), linear, equal, margins often scarious, apices acute (often thickened or bearing keel-like flaps near tips).
bractlets 8 in 1(–2) series, linear to subulate, 3–8 mm.
of 3–13+, deltate to subulate or filiform bractlets.
borne singly or 2–3 in loose, corymbiform arrays.
borne singly or in loose, corymbiform arrays.
bodies stramineous, 4–5 mm, beaks 6–7 mm;
pappi 10–12 mm.
reddish brown to stramineous, bodies ± fusiform, beaks (± concolorous with bodies) ± filiform, fragile, grooves (or broad ribs) 5, faces transversely rugulose, glabrous;
pappi (borne on discs at tips of beaks) persistent, double: outer coroniform (of whitish, relatively short, spreading, sometimes curly, hairs), inner of 80–120+, rufous to stramineous, subequal, barbellulate bristles in 2–3+ series.
= 6.
= 24.
Pyrrhopappus grandiflorus
Pyrrhopappus
Pyrrhopappus grandiflorus has been reported from Arkansas and New Mexico; I have seen no specimens of it from those states.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Species 1, 4, or 5 (4 in the flora).
Some plants from Mexico that have been called Pyrrhopappus multicaulis de Candolle (type from Mexico) may be distinct at species rank from P. pauciflorus (see R. McVaugh 1984).
Almost all botanists who have dealt with the biology or floristics of pyrrhopappuses have remarked similarities among the taxa and/or difficulties with identification of some specimens. Some botanists have noted that “interspecific” hybridizations are common (D. K. Northington 1974; B. L. Turner and K. J. Kim 1990; and works cited therein).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Perennials (roots or rootstocks producing tuberiform swellings 1–15 cm below soil surface); stems usually scapiform; cauline leaves usually 0, sometimes 1–3; anthers 4.5–5 mm. | P. grandiflorus |
1. Annuals or perennials (not producing tuberiform swellings); stems rarely scapiform; cauline leaves usually 3–9+, seldom 0–2; anthers 2.5–4 mm | → 2 |
2. Stems usually sparsely to densely pilosulous proximally, sometimes glabrous; blades of distal cauline leaves usually pinnately (3–)5–7(–9+)-lobed | P. pauciflorus |
2. Stems usually glabrous proximally, sometimes pilosulous; blades of distal cauline leaves usually entire or with 1–2 lobes near bases, sometimes pinnately 3–5(–7+)-lobed | → 3 |
3. Perennials; involucres 12–15(–17+) mm; florets 30–60+; cypselae stramineous; pappi 6–7 mm | P. rothrockii |
3. Annuals; involucres 17–24 mm; florets 50–150+; cypselae reddish brown; pappi 9–10 mm | P. carolinianus |
KS Wildflowers
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