Palafoxia callosa
Fl. N. Amer. 2: 369. 1842.
Basionym: Stevia callosa Nuttall J. Acad. Nat. Sci. Philadelphia 2: 121. 1821
Revision as of 23:02, 29 July 2020 by imported>Volume Importer
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
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"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
broadly lanceolate;linear +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
6;80 +
absent +
actinomorphic +
monomorphic +
dimorphic +
hairy +
3mm;5mm +
staminate +
straight +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
radiant +
indeterminate +
surrounding +
turbinate +
1mm;4mm +
cauline +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
equal +
Fl. N. Amer. +
1842 +
pistillate +
absent +
fertile +
epaleate +
pitted +
knobby +
fibrous +
distinct +
scarious +
exalbuminous +
modifed +
1;2 +
alternate +
branched +
erect +
2-branched +
papillate +
Palafoxia callosa +
Palafoxia +
species +
shorter +
cylindric +
shorter +
much longer than short +
annual +