Palafoxia texana

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 125. 1836.
Synonyms: Palafoxia texana var. ambigua (Shinners) B. L. Turner & M. I. Morris
Treatment appears in FNA Volume 21. Treatment on page 391. Mentioned on page 388, 389, 390.

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. Phyllaries 5–8 × 1–2.5 mm, ± equal, scabrellous, rarely stipitate-glandular. Ray florets 0. Disc florets 10–25; corollas actinomorphic, 7–10 mm, throats ± funnelform, shorter than lobes. Cypselae 4–6 mm; pappus scales of inner cypselae 2–6 mm. 2n = 22.


Phenology: Flowering spring–fall.
Habitat: Calcareous, usually rocky or gravelly soils
Elevation: 10–100+ m

Distribution

V21-986-distribution-map.gif

Fla., La., Tex., Mexico (Coahuila, Nuevo León, Tamaulipas).

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.

Selected References

None.

Lower Taxa

None.

... more about "Palafoxia texana"
John L. Strother +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
Fla. +, La. +, Tex. +, Mexico (Coahuila +, Nuevo León +  and Tamaulipas). +
10–100+ m +
Calcareous, usually rocky or gravelly soils +
Flowering spring–fall. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Palafoxia texana var. ambigua +
Palafoxia texana +
Palafoxia +
species +