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Rio Grande Palafox

Palafoxia riograndensis Cory

Description

provided by eFloras
Annuals, 30–60 cm. Stems scabrous to glabrate, not stipitate-glandular. Leaf blades lance-linear, 30–70 × 2–8 mm. Involucres ± cylindric. Phyllaries 10–15 × 1–2 mm, ± equal, ± scabrous, not stipitate-glandular. Ray florets 0. Disc florets 8–25; corollas zygomorphic (outer) to actinomorphic (inner), 6–9 mm, throats ± funnelform, shorter than lobes. Cypselae 7–12 mm; pappus scales of inner cypselae 5–8 mm. 2n = 24.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 389, 390 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Palafoxia riograndensis

provided by wikipedia EN

Palafoxia riograndensis, the Rio Grande palafox or Rio Grande Spanish needles, is a plant species native to Texas, Chihuahua and Coahuila. It is named for the Rio Grande which separates Texas from Mexico. The plant grows in sandy and silty soils at elevations of 50–200 m (160–660 ft).[1]

Palafoxia riograndensis is an annual herb up to 60 cm (24 in) tall. Flowering heads have no ray flowers but 8-25 pink, purple or white disc flowers.[2][3][4]

References

  1. ^ Flora of North America v 21 p 390.
  2. ^ Turner, B. L. and M. I. Morris. 1976. Systematics of Palafoxia (Asteraceae: Helenieae). Rhodora 78: 567–628.
  3. ^ Cory, Victor Louis. 1946. Genus Palafoxia in Texas. Rhodora 48(568): 84–86.
  4. ^ Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
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Palafoxia riograndensis: Brief Summary

provided by wikipedia EN

Palafoxia riograndensis, the Rio Grande palafox or Rio Grande Spanish needles, is a plant species native to Texas, Chihuahua and Coahuila. It is named for the Rio Grande which separates Texas from Mexico. The plant grows in sandy and silty soils at elevations of 50–200 m (160–660 ft).

Palafoxia riograndensis is an annual herb up to 60 cm (24 in) tall. Flowering heads have no ray flowers but 8-25 pink, purple or white disc flowers.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN