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Viguiera

Viguiera
Family: Asteraceae
Viguiera image
Max Licher
  • FNA
  • SW Field Guide
  • Resources
Edward E. Schilling in Flora of North America (vol. 21)
Perennials or shrubs [annuals], 50-200 cm. Stems erect or ascending, unbranched or branched. Leaves mostly cauline; opposite (proximal) and/or alternate (distal); petiolate or ± sessile; blades often 3-nerved (from at or near bases), deltate, deltate-ovate, lance-linear, lanceolate, lance-ovate, linear, linear-filiform, rhombic-ovate, or ovate, sometimes pinnately lobed, ultimate margins entire or toothed, faces glabrous or hairy, often gland-dotted. Heads radiate, borne singly or (2-25+) in open to crowded, ± corymbiform arrays. Involucres hemispheric [campanulate], (5-18 ×) 7-15 mm. Phyllaries persistent, 10-30 in 2-5 series (subequal to unequal). Receptacles flat to convex, paleate (paleae tan, conduplicate, apices often 3-lobed or -toothed). Ray florets 6-18, neuter; corollas yellow (laminae 2-4-lobed). Disc florets 40-100+, bisexual, fertile; corollas yellow, tubes shorter than campanulate throats, lobes 5, triangular (style branches slender, apices acute or attenuate). Cypselae (purplish black, often mottled) ± compressed, often obpyramidal (usually strigose, sometimes glabrous); pappi 0, or persistent or tardily falling, of 2 lacerate, aristate scales (2.2-5.5 mm) plus [0-]2-4[-6] lacerate or aristate scales (0.5-1.3 mm). x = 17.

Viguiera has been long recognized as paraphyletic. Molecular studies are helping to clarify its phylogeny, and the corresponding systematic adjustments are beginning (E. E. Schilling and J. L. Panero 2002). Some groups have already been separated, including Bahiopsis and Heliomeris. It is likely that the genus will be narrowed to include only a single species, V. dentata (including V. helianthoides Kunth), and that new or resurrected genera will accommodate the remaining species. As currently circumscribed, the genus occurs primarily in Mexico and South America and reaches its northern limit of distribution in the southwestern United States. The Mexican (Chihuahua, Durango) V. phenax was collected a single time in Texas [where it was named Helianthus ludens Shinners and Viguiera ludens (Shinners) M. C. Johnston]; it apparently has not become established in the flora area.

FNA 2006, Wiggins 1964, Kearney and Peebles 1969
Nativity: Native General: Annual or perennial herbs, frutescent plants to shrubs. Leaves: Opposite, at least below. Flowers: Heads small to large, radiate, corollas usually yellow, sometimes with whitish rays or purplish disk; phyllaries 2-several-seriate, subequal or graduated, usually indurated and ribbed at base and herbaceous toward apex; ray florets usually sterile; disk florets subtended by chaffy bracts, these enclosing achenes and falling with them. Fruits: Cypselae with appressed hairs and a pappus of 2 bristles and smaller scales, or glabrous and pappus absent. Ecology: Washes, plains, arroyos, hillslopes, various substrates. Notes: Closely related to, and appearing similar to Helianthus. Three species and one variety have been found in Santa Cruz county, a collection of this plant is necessary for documentation (2008). Ethnobotany: Unknown Etymology: Viguiera named after Louis Guillaume Alexandre Viguier (1790-1867) a French botanist. Synonyms: None Editor: SBuckley, 2010
Species within checklist: A preliminary checklist of the vascular plant flora of La Guásima, southern Sinaloa, northwestern Me || << 1 - 50 taxa >>
Viguiera adenophylla
Media resource of Viguiera adenophylla
Map not
Available
Viguiera anchusaefolia
Media resource of Viguiera anchusaefolia
Map not
Available
Viguiera angustifolia
Media resource of Viguiera angustifolia
Map not
Available
Viguiera argyrophylla
Media
not available
Map not
Available
Viguiera bombycina
Media resource of Viguiera bombycina
Map not
Available
Viguiera brandegeei
Media
not available
Map not
Available
Viguiera brevifolia
Media resource of Viguiera brevifolia
Map not
Available
Viguiera buddleiaeformis
Media resource of Viguiera buddleiaeformis
Map not
Available
Viguiera buddleiiformis
Media resource of Viguiera buddleiiformis
Map not
Available
Viguiera buddlejiformis
Media
not available
Map not
Available
Viguiera canescens
Media resource of Viguiera canescens
Map not
Available
Viguiera carterae
Media resource of Viguiera carterae
Map not
Available
Viguiera chenopodina
Media resource of Viguiera chenopodina
Map not
Available
Viguiera cordata
Media resource of Viguiera cordata
Map not
Available
Viguiera davilae
Media resource of Viguiera davilae
Map not
Available
Viguiera decurrens
Media resource of Viguiera decurrens
Map not
Available
Viguiera dentata
Media resource of Viguiera dentata
Map not
Available
Viguiera ensifolia
Media resource of Viguiera ensifolia
Map not
Available
Viguiera eriophora
Media resource of Viguiera eriophora
Map not
Available
Viguiera excelsa
Media resource of Viguiera excelsa
Map not
Available
Viguiera flava
Media resource of Viguiera flava
Map not
Available
Viguiera funkiae
Media
not available
Map not
Available
Viguiera gentryi
Media resource of Viguiera gentryi
Map not
Available
Viguiera goldmanii
Media resource of Viguiera goldmanii
Map not
Available
Viguiera grahamii
Media
not available
Map not
Available
Viguiera grammatoglossa
Media resource of Viguiera grammatoglossa
Map not
Available
Viguiera greggii
Media resource of Viguiera greggii
Map not
Available
Viguiera guerrerana
Media resource of Viguiera guerrerana
Map not
Available
Viguiera hassleriana
Media resource of Viguiera hassleriana
Map not
Available
Viguiera helianthoides
Media resource of Viguiera helianthoides
Map not
Available
Viguiera hemsleyana
Media resource of Viguiera hemsleyana
Map not
Available
Viguiera hypargyrea
Media resource of Viguiera hypargyrea
Map not
Available
Viguiera hypochlora
Media resource of Viguiera hypochlora
Map not
Available
Viguiera incana
Media resource of Viguiera incana
Map not
Available
Viguiera insignis
Media
not available
Map not
Available
Viguiera kingii
Media
not available
Map not
Available
Viguiera kunthiana
Media resource of Viguiera kunthiana
Map not
Available
Viguiera laciniata
Media resource of Viguiera laciniata
Map not
Available
Viguiera lanata
Media resource of Viguiera lanata
Map not
Available
Viguiera latibracteata
Media resource of Viguiera latibracteata
Map not
Available
Viguiera laxicymosa
Media resource of Viguiera laxicymosa
Map not
Available
Viguiera linearifolia
Media resource of Viguiera linearifolia
Map not
Available
Viguiera linearis
Media resource of Viguiera linearis
Map not
Available
Viguiera ludens
Media resource of Viguiera ludens
Map not
Available
Viguiera maculata
Media resource of Viguiera maculata
Map not
Available
Viguiera michoacana
Media resource of Viguiera michoacana
Map not
Available
Viguiera microcephala
Media resource of Viguiera microcephala
Map not
Available
Viguiera microphylla
Media resource of Viguiera microphylla
Map not
Available
Viguiera mima
Media resource of Viguiera mima
Map not
Available
Viguiera montana
Media resource of Viguiera montana
Map not
Available
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