dcsimg

Comprehensive Description

provided by North American Flora
Flaveria oppositifolia (DC.) Rydberg
Gymnosperma oppositi folium DC. Prodr. 5: 312. 1836. Flaveria longi folia A. Gray, Mem. Am. Acad. II. 4: 88. 1849.
A rather stout annual herb; stem 3-10 dm. high, simple below; leaves glabrous, broadest at the sessile base, nearly linear, entire or rarely with spinulose denticulations; heads 10-15flowered, in ample, rather open, cymes; involucral bracts 5-7, oblong, 4 mm. long; rayflower wanting; disk-corollas 3 mm. long, glabrous; tube rather shorter than the throat; achenes 1.5 mm. long.
Type locality: Between San Ferrado and Santander [Tamaulipas]. Distribution: Coahuila to Tamaulipas and Aguas Calientes.
license
cc-by-nc-sa-3.0
bibliographic citation
Per Axel Rydberg. 1915. (CARDUALES); CARDUACEAE; HELENIEAE, TAGETEAE. North American flora. vol 34(2). New York Botanical Garden, New York, NY
original
visit source
partner site
North American Flora

Flaveria oppositifolia

provided by wikipedia EN

Flaveria oppositifolia is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in northeastern Mexico, from Tamaulipas west to Coahuila, south as far as Hidalgo and Aguascalientes.[2] Some sources report the species to be present in the State of Texas in the United States, but the Texas populations have been recognized as a distinct species, F. brownii.[3]

Flaveria oppositifolia is a perennial herb up to 80 cm (31.5 in) tall. Leaves are about 5–10 cm (2–4 in) long, covered in short, soft hairs. One plant can produce numerous flower heads in a loose branching array. Each head contains 10-15 yellow disc flowers but no ray flowers.[2]

References

  1. ^ The Plant List, Flaveria oppositifolia (DC.) Rydb.
  2. ^ a b Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 609-611 description and commentary in English, distribution map on page 610, Flaveria oppositifolia
  3. ^ Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 611-613 description and commentary in English, distribution map on page 610, Flaveria brownii

 title=
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Flaveria oppositifolia: Brief Summary

provided by wikipedia EN

Flaveria oppositifolia is a rare Mexican plant species of Flaveria within the family Asteraceae. It has been found only in northeastern Mexico, from Tamaulipas west to Coahuila, south as far as Hidalgo and Aguascalientes. Some sources report the species to be present in the State of Texas in the United States, but the Texas populations have been recognized as a distinct species, F. brownii.

Flaveria oppositifolia is a perennial herb up to 80 cm (31.5 in) tall. Leaves are about 5–10 cm (2–4 in) long, covered in short, soft hairs. One plant can produce numerous flower heads in a loose branching array. Each head contains 10-15 yellow disc flowers but no ray flowers.

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