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Palafoxia sphacelata
(Nutt. ex Torr.) Cory
Family:
Asteraceae
[
Othake sphacelata
,
more
Polypteris sphacelata
Trel.
]
Patrick Alexander
Flora of North America
Resources
John L. Strother in Flora of North America (vol. 21)
Annuals,
10-90 cm.
Stems
usually proximally hispid, distally stipitate-glandular.
Leaf blades
broadly to narrowly lanceolate, 30-90 × 3-20 mm.
Involucres
broadly to narrowly turbinate.
Phyllaries
9-12+ × 1.5-3 mm, ± equal, ± scabrous to hispid and/or stipitate-glandular.
Ray florets
3-5; corollas 15-25 mm, laminae 5-12 mm.
Disc florets
15-35; corollas ± actinomorphic, 10-14 mm, throats ± funnelform, shorter than lobes.
Cypselae
6-9 mm;
pappus scales
of inner cypselae 7-9 mm.
2
n
= 24. Flowering summer-fall. Sandy soils; 1000-1800 m; Colo., Kans., Nebr., N.Mex., Okla., Tex.; Mexico (Chihuahua).
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Patrick Alexander
Patrick Alexander
Patrick Alexander
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