Pyrrhopappus pauciflorus

(D. Don) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 7: 144. 1838.

Basionym: Chondrilla pauciflora D. Don Trans. Linn. Soc. London 16: 180. 1830
Synonyms: Pyrrhopappus geiseri Shinners Pyrrhopappus multicaulis de Candolle Pyrrhopappus multicaulis var. geiseri (Shinners) Northington
Treatment appears in FNA Volume 19. Treatment on page 377. Mentioned on page 376, 378.

Annuals (sometimes persisting), 5–40 (–80+) cm. Stems seldom, if ever, scapiform, branching from bases and/or distally, usually sparsely to densely pilosulous proximally, sometimes glabrous. Cauline leaves 1–3 (–5+), proximal mostly oblanceolate to lanceolate, margins usually pinnately lobed, sometimes dentate or entire, distal ± lanceolate, margins usually pinnately (3–) 5–7 (–9+) -lobed. Heads (1–) 3–7+ in loose, corymbiform arrays. Calyculi: bractlets 8–13 in 1–2 series, deltate to subulate, 3–5 (–6) mm. Involucres ± campanulate to cylindric, 16–22 mm. Phyllaries 13–21. Florets 50–60; anthers 3.5 mm (pollen equatorial diameters 43–46 µm). Cypselae: bodies reddish-brown, 4–5 mm, beaks 7–9 mm; pappi 7–9 (–10) mm. 2n = 12.


Phenology: Flowering (Feb–)Apr–May.
Habitat: Disturbed sites, prairies, clay soils
Elevation: 10–500 m

Distribution

V19-609-distribution-map.gif

Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (Tamaulipas)

Discussion

Some specimens of Pyrrhopappus from the Panhandle of Texas and from New Mexico are intermediate for traits used here to distinguish P. pauciflorus and P. rothrockii. Some authors (e.g., B. L. Turner and K. J. Kim 1990) have included P. rothrockii within P. pauciflorus.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Pyrrhopappus pauciflorus"
3.5 cm35 mm <br />0.035 m <br /> (?) +
scarious +
ovate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
(D. Don) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
decurrent +
Chondrilla pauciflora +
filiform +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
compound +  and simple +
ovate;lanceolate or linear +
reddish-brown +
tuberculate +, rugose +, muricate +  and smooth +
fusiform +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deltate;subulate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
filiform +
rufous +  and stramineous +
subequal +
1 (?) +  and 3 (?) +
zygomorphic +, actinomorphic +  and (3-)5-merous +
yellow +  and whitish +
reddish-brown +  and stramineous +
tapered +, beaked +, flattened +, obcompressed +, compressed +, prismatic +, fusiform +, ellipsoid +, columnar +  and clavate +
Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
10–500 m +
rugulose +
winged +  and beaked +
dispersed +
Disturbed sites, prairies, clay soils +
in loose , corymbiform arrays +  and singly +
indeterminate +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
less campanulate;cylindric +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
entire +  and dentate +
(3-)5-7(-9+)-lobed +  and lobed +
2-carpellate +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
persistent +
coroniform +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Flowering (Feb–)Apr–May. +
connate +  and distinct +
13 +  and 21 +
subequal +  and unequal +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
exalbuminous +
2 +  and 5 +
scapiform +
appendaged +  and truncate +
papillate +
Pyrrhopappus geiseri +, Pyrrhopappus multicaulis +  and Pyrrhopappus multicaulis var. geiseri +
Pyrrhopappus pauciflorus +
Pyrrhopappus +
species +
rhizomatous +  and taprooted +
40 cm400 mm <br />0.4 m <br /> (80 cm800 mm <br />0.8 m <br />) +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +