Palafoxia arida
Palafoxia integrifolia
desert palafox, Spanish needle
coastal plain palafox
scabrous to nearly glabrous, sometimes distally stipitate-glandular.
strigillose to glabrate, not stipitate-glandular.
blades lance-linear to linear, 20–120 × 2–55 mm.
blades lanceolate to linear, 25–90 × 2–13 mm.
cylindric to narrowly turbinate.
broadly turbinate.
0.
0.
9–40;
corollas ± actinomorphic, 9–13 mm, throats ± cylindric, longer than lobes.
10–26;
corollas ± actinomorphic, 7–13 mm, throats ± funnelform, shorter than lobes.
± equal, 10–25 × 1–2.5 mm, ± scabrous, sometimes stipitate-glandular.
8–11 × 1–3.5 mm, unequal, glabrous or glabrate.
10–16 mm;
pappus scales of inner cypselae 8–12 mm.
5–6 mm;
pappus scales of inner cypselae 4–7 mm.
= 24.
= 24.
Palafoxia arida
Palafoxia integrifolia
Plants of Palafoxia arida 90–150 cm with phyllaries 16–25 mm (from dunes west of Yuma, Arizona) have been treated as var. gigantea. Plants referable to P. arida have been named P. linearis (Cavanilles) Lagasca (including var. gigantea M. E. Jones) in other floras; P. linearis is a Mexican species (see B. L. Turner and M. I. Morris 1976).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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