Pacific Island Ecosystems at Risk (PIER)

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Gnaphalium cheiranthifolium
Lam., Asteraceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Habit:  herb

Description: 

Genus:  "Annuals [biennials or perennials], (1-) 3-30 cm; usually taprooted, sometimes fibrous-rooted. Stems usually 1, erect (often with decumbent-ascending branches from bases; ± woolly-tomentose, not glandular). Leaves mostly cauline; alternate; ± sessile; blades oblanceolate to spatulate or linear, bases ± cuneate, margins entire, faces concolor, gray and tomentose. Heads disciform, usually in ± capitate clusters (in axils of leaves or bracts), sometimes in spiciform glomerules. Involucres narrowly to broadly campanulate, 2.5-4 mm. Phyllaries in 3-5 series, usually white or tawny to brown (opaque or hyaline, often shiny; stereomes usually glandular distally), ± equal to unequal, chartaceous toward tips (inner phyllaries narrowly oblong, usually white-tipped and protruding distal to outer). Receptacles flat, smooth, epaleate. Peripheral (pistillate) florets 40-80 (more numerous than bisexual); corollas purplish or whitish. Inner (bisexual) florets 4-7; corollas purplish or whitish. Cypselae oblong, faces usually glabrous, sometimes minutely papillate (hairs ± papilliform, not myxogenic); pappi readily falling, of 8-12 distinct, barbellate bristles in 1 series"  (Flora of North America online).

Species:  "Tallo herbáceo, derecho, sencillo, tanto él como ambas caras de las hojas envueltos en una lana cenicienta.  Hojas decurrentes, linear-lanceoladas, con la base aflechada, el ápice agudo i las márjenes encrespadas; ca. de 4 cm. de largo i de 6-7 mm. de ancho.  cabezuelas paniculadas, con las flores centrales ☿ en el número de 10-12.  hojuelas de invólucro poco agudas.  Aquenios apenas papilosos.  Pelos de vilano entretejidos en la base"  (Reich, 1896; vol. 4, p. 53).

Habitat/ecology:  (no habitat/ecology info known by PIER)

Propagation:  Seed

Native range:  Argentina, Bolivia, Brazil, Uruguay (GRIN).  Chile (Reich, 1896; vol. 4, p. 53).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
Skottsberg, Carl (1953) (p. 224)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
Skottsberg, Carl (1953) (p. 224)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Más Afuera (Alejandro Selkirk Island) introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
Chile (offshore islands)
Juan Fernández Islands
Isla Santa Clara introduced
Skottsberg, Carl (1953) (p. 224)
Chile (offshore islands)
Juan Fernández Islands
Isla Santa Clara introduced
invasive
Atkinson, Rachel/Sawyer, John (2011)
Chile (offshore islands)
Juan Fernández Islands
Isla Santa Clara introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
Chile (offshore islands)
Juan Fernández Islands
Morro El Verdugo introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
Chile (offshore islands)
Juan Fernández Islands
Morro Juanango introduced
invasive
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (p. 554)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (continental)
Chile
Chile (Republic of)   Skottsberg, Carl (1953) (p. 224)


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This page was created on 15 DEC 2010 and was last updated on 15 JAN 2011.