Palafoxia callosa

(Nuttall) Torrey & A. Gray

Fl. N. Amer. 2: 369. 1842.

Basionym: Stevia callosa Nuttall J. Acad. Nat. Sci. Philadelphia 2: 121. 1821
Treatment appears in FNA Volume 21. Treatment on page 390. Mentioned on page 388, 389.

Annuals, 20–60 cm. Stems scabrous to glabrate, not stipitate-glandular. Leaf-blades linear, 20–70 × 1–4 mm. Involucres ± turbinate. Phyllaries 3–5 × 1+ mm, ± equal, ± strigillose, not stipitate-glandular. Ray-florets 0. Disc-florets 5–30; corollas actinomorphic, 5–6 mm, throats ± funnelform, shorter than lobes. Cypselae 3–5 mm; pappus-scales of inner cypselae 0.3–1 mm. 2n = 20.


Phenology: Flowering summer–fall.
Habitat: Rocky, calcareous soils
Elevation: 50–300 m

Distribution

V21-984-distribution-map.gif

Ark., Mo., Tex., Mexico (Coahuila)

Discussion

Some depauperate specimens of Palafoxia rosea (e.g., Oklahoma, Beckham Co., 17 Oct 1936, Eskero 1502, US) closely resemble P. callosa.

Selected References

None.

Lower Taxa

None.
... more about "Palafoxia callosa"
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 +
(Nuttall) Torrey & A. Gray +
decurrent +
Stevia callosa +
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 +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
4-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ark. +, Mo. +, Tex. +  and Mexico (Coahuila) +
50–300 m +
appressed-puberulent +  and strigillose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Rocky, calcareous 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 />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
sessile +  and petiolate +
alternate +  and opposite +
linear +  and lance-linear +
deltate +  and linear +
2-carpellate +
persistent +
spatulate +  and subulate +
thickened +  and callous-thickened +
Flowering summer–fall. +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not stipitate-glandular +  and strigillose +
8 +  and 14 +
Fl. N. Amer. +
bearing subulate enations +, hairy +  and bristly +
distinct +
4 +  and 20 +
exalbuminous +
not stipitate-glandular +, scabrous +  and glabrate +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Palafoxia callosa +
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 />) +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
shrub +  and subshrub +