Flora of North America species comparison

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Palafoxia texana

Texas palafox
Habit Annuals or perennials (subshrubs), 20–80 cm.
Stems

± scabrous, not stipitate-glandular.
Leaf

blades ovate-lanceolate to linear-lanceolate, 30–80 × (5–)10–20 mm.
Involucres

± turbinate.
Ray florets

0.
Disc florets

10–25;

corollas actinomorphic, 7–10 mm, throats ± funnelform, shorter than lobes.
Phyllaries

5–8 × 1–2.5 mm, ± equal, scabrellous, rarely stipitate-glandular.
Cypselae

4–6 mm;

pappus scales of inner cypselae 2–6 mm.
2n

= 22.

Palafoxia texana
Phenology Flowering spring–fall.
Habitat Calcareous, usually rocky or gravelly soils
Elevation 10–100+ m (0–300+ ft)
Distribution
from FNA
FL; LA; TX; Mexico (Coahuila, Nuevo León, Tamaulipas)
[WildflowerSearch map]
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 391.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Chaenactidinae > Palafoxia
Sibling taxa
P. arida, P. callosa, P. feayi, P. hookeriana, P. integrifolia, P. reverchonii, P. riograndensis, P. rosea, P. sphacelata
Synonyms P. texana var. ambigua
Name authority de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 125. (1836)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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