Palafoxia texana

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. 5: 125. 1836.

Synonyms: Palafoxia texana var. ambigua (Shinners) B. L. Turner & M. I. Morris
Treatment appears in FNA Volume 21. Treatment on page 391. Mentioned on page 388, 389, 390.

Annuals or perennials (subshrubs), 20–80 cm. Stems ± scabrous, not stipitate-glandular. Leaf-blades ovatelanceolate to linear-lanceolate, 30–80 × (5–) 10–20 mm. Involucres ± turbinate. Phyllaries 5–8 × 1–2.5 mm, ± equal, scabrellous, rarely stipitate-glandular. Ray-florets 0. Disc-florets 10–25; corollas actinomorphic, 7–10 mm, throats ± funnelform, shorter than lobes. Cypselae 4–6 mm; pappus-scales of inner cypselae 2–6 mm. 2n = 22.


Phenology: Flowering spring–fall.
Habitat: Calcareous, usually rocky or gravelly soils
Elevation: 10–100+ m

Distribution

V21-986-distribution-map.gif

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

Discussion

Plants of Palafoxia texana with non-stipitate-glandular phyllaries (versus stipitate-glandular) and pappus scales (on inner cypselae) 1–4 (versus 3–6) mm have been treated as var. ambigua. Some specimens are not readily assignable to either variety, and some are not readily assignable to either P. rosea or P. texana.

Selected References

None.

Lower Taxa

None.
... more about "Palafoxia texana"
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 +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
decurrent +
compound +  and simple +
broadly lanceolate;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
actinomorphic +
pinkish +  and purplish or whitish +
stipitate-glandular +  and hairy +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
4-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Fla. +, La. +, Tex. +, Mexico (Coahuila) +, Mexico (Nuevo León) +  and Mexico (Tamaulipas) +
10–100+ m +
appressed-puberulent +  and strigillose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Calcareous, usually rocky or gravelly soils +
disciform +  and discoid +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ovatelanceolate;linear-lanceolate +
sessile +  and petiolate +
alternate +  and opposite +
linear +  and lance-linear +
deltate +  and linear +
2-carpellate +
persistent +
spatulate +  and subulate +
thickened +  and callous-thickened +
Flowering spring–fall. +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
stipitate-glandular +
8 +  and 14 +
scabrellous +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
distinct +
4 +  and 20 +
exalbuminous +
not stipitate-glandular +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Palafoxia texana var. ambigua +
Palafoxia texana +
Palafoxia +
species +
cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
much longer than short +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
perennial +  and annual +
20 cm200 mm <br />0.2 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 />) +
shrub +  and subshrub +