Peucephyllum

A. Gray in W. H. Emory

in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 74. 1859.

Etymology: Greek peuke, pine or fir, and phyllon, leaf
Treatment appears in FNA Volume 21. Treatment on page 378. Mentioned on page 364, 365.
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 TaxonIllustrator 
FNA21 P57 Peucephyllum sch.jpegPeucephyllum schottii
Bartlettia scaposa
Syntrichopappus fremontii
Linda Ann Vorobik
Barbara Alongi
Yevonn Wilson-Ramsey

Shrubs or treelets, mostly 100–300 cm. Stems (1–5+), branched. Leaves cauline; alternate; sessile; blades linear-filiform, rarely with 1–2 lateral lobes, ultimate margins entire, faces glabrous, glanddotted. Heads discoid, borne singly. Involucres turbinate to campanulate, 6–12 mm diam. Phyllaries persistent or tardily falling, 8–18 in ± 2 series (linear to lanceolate, outer intergrading with subtending leaves). Receptacles flat, pitted or knobby, epaleate. Ray-florets 0. Disc-florets 12–21, bisexual, fertile; corollas creamy yellow, distally purplish (stipitate-glandular), tubes shorter than cylindric throats, lobes 5, erect, deltate (style-branch appendages rounded-truncate, papillate). Cypselae obconic to obpyramidal, hirsute (hairs tawny to reddish); pappi persistent, of 30–60 bristles subtending 15–20 subulate-aristate scales, or of ca. 120 bristles. x = 10.

Distribution

sw United States, nw Mexico

Discussion

Species 1.

Selected References

None.

... more about "Peucephyllum"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
A. Gray in W. H. Emory +
decurrent +
compound +  and simple +
linear-filiform +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
purplish +  and creamy yellow +
stipitate-glandular +  and hairy +
obconic +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +  and nw Mexico +
Greek peuke, pine or fir, and phyllon, leaf +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
turbinate;campanulate +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
15 +  and 20 +
aristate +
8 +  and 18 +
in W. H. Emory, Rep. U.S. Mex. Bound. +
bearing subulate enations +, hairy +  and bristly +
distinct +
4 +  and 20 +
subulate-aristate +
exalbuminous +
1 (?) +  and 5 (?) +
prostrate +  and ascending +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Peucephyllum +
Asteraceae (tribe Heliantheae) subtribe Chaenactidinae +
cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
100 cm1,000 mm <br />1 m <br /> (300 cm3,000 mm <br />3 m <br />) +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
perennial +, biennial +  and annual +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +