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.
 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 />) +