Flora of North America species comparison

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Palafoxia texana

Palafoxia rosea

Texas palafox

pink palafoxia, rosy palafox
Habit Annuals or perennials (subshrubs), 20–80 cm. Annuals, 10–50 cm.
Stems

± scabrous, not stipitate-glandular.

scabrous to glabrate, not stipitate-glandular.
Leaf

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

blades linear-lanceolate, 30–60 × 2–6(–10) mm.
Involucres

± turbinate.

± turbinate.
Ray florets

0.

0.
Disc florets

10–25;

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

5–30;

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

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

5–10 × 1–2.5 mm, ± equal, usually scabrellous and stipitate-glandular.
Cypselae

4–6 mm;

pappus scales of inner cypselae 2–6 mm.

5–8 mm;

pappus scales of inner cypselae (1.5–)3–8 mm.
2n

= 22.

= 20.

Palafoxia texana

Palafoxia rosea
Phenology Flowering spring–fall. Flowering spring–fall.
Habitat Calcareous, usually rocky or gravelly soils Sandy soils
Elevation 10–100+ m (0–300+ ft) 100–1500 m (300–4900 ft)
Distribution
from FNA
FL; LA; TX; Mexico (Coahuila, Nuevo León, Tamaulipas)
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; KS; NM; OK; TX; WY
[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.)

Plants of Palafoxia rosea with phyllaries 7–10 (versus 5–7) mm and pappus scales 3–8 (versus 1–3) mm have been treated as var. macrolepis. Some specimens are not readily assignable to either variety, and some are not readily assignable to either P. rosea or P. texana. Other specimens referred here to P. rosea closely resemble P. callosa.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 391. FNA vol. 21, p. 391.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Chaenactidinae > Palafoxia 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
P. arida, P. callosa, P. feayi, P. hookeriana, P. integrifolia, P. reverchonii, P. riograndensis, P. sphacelata, P. texana
Synonyms P. texana var. ambigua Othake roseum, P. rosea var. macrolepis
Name authority de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 125. (1836) (Bush) Cory: Rhodora 48: 86. (1946)
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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