(Vahl) A. Gray, Asteraceae
|
|
|
|
|
(Vahl) A. Gray, Asteraceae |
|
Present on Pacific Islands? yes
Primarily a threat at high elevations? no
Common name(s): [more details]
|
Spanish: culantrillo |
Habit: herb
Description: "Erect annual to 2 m tall, simple below and with main axis continuing nearly to tip, but more or less diffusely branched upward when well-developed; stem puberulent or woolly-puberulent, especially upward, often also somewhat viscid or glandular; basal leaves none; cauline leaves opposite, lower ones reduced and often soon deciduous, others well-developed, with slender petiole 1-8 cm long and a thin, deltoid-ovate to broadly subcordate blade mostly 2-8 cm long and wide, palmately tri-nerved, evidently crenate, often atomiferous-glandular, and otherwise sparsely hairy (especially along veins) or nearly glabrous; heads numerous to very numerous on slender peduncles mostly (2) 5-15 mm long; heads mostly 8-13-flowered, cylindric, the involucre 6-9 mm high, its slender bracts strongly imbricate in several series, greenish with hyaline margins, commonly with 2 pale principal veins flanking midline, often with thinner vein delimiting each of the hyaline margins; corollas greenish white, very slender, scarcely expanded upward, about 4 mm long; style branches filiform; achenes about 2 mm long, blackish, antrorsely strigose or more loosely hirsute-strigose" (Wiggins & Porter, 1971; pp. 320-322).
Habitat/ecology: In its native range, "moist or dry thickets, often a weed in waste ground, 1,600 m. or less" (Nash & Williams, 1976; p. 12/43). "A common weed of much of tropical America" (Wiggins & Porter, 1971; pp. 320-322).
Propagation: Seed
Native range: Mexico, Central and South America (GRIN)
Presence:
| Pacific | |||
|
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
|
Ecuador (Galápagos Islands)
Darwin Islands |
Darwin Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Fernandina Group |
Fernandina Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Isabela Group |
Isabela Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Isabela Group |
Volcán Cerro Azul, Isabela Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Isabela Group |
Volcán Darwin, Isabela Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Isabela Group |
Volcán Sierra Negra, Isabela Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Santa Cruz Group |
Santa Cruz Island |
native
|
Charles Darwin Research Station (2005) |
|
Ecuador (Galápagos Islands)
Wolf Island |
Wolf Island |
native
|
Charles Darwin Research Station (2005) |
| Pacific Rim | |||
|
Country/Terr./St. & Island group |
Location |
Cited status &
Cited as invasive & Cited as cultivated & Cited as aboriginal introduction? |
Reference &
Comments |
|
Colombia
Colombia |
Colombia (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Costa Rica
Costa Rica |
Costa Rica (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Ecuador (Mainland)
Ecuador |
Ecuador (Republic of) (continental) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
El Salvador
El Salvador |
El Salvador (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Guatemala
Guatemala |
Guatemala (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Honduras
Honduras |
Honduras (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Mexico
Mexico |
Mexico (United Mexican States) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Nicaragua
Nicaragua |
Nicaragua (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Panama
Panama |
Panama (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
|
Perú
Perú |
Perú (Republic of) |
native
|
U.S. Dept. Agr., Agr. Res. Serv. (2011) |
Additional information:
Additional online information about Brickellia diffusa is available from the Hawaiian Ecosystems at Risk project (HEAR).
Information about Brickellia diffusa as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).
Taxonomic information about Brickellia diffusa may be available from the Germplasm Resources Information Network (GRIN).
References:
Charles Darwin Foundation. 2008. Database inventory of introduced plant species in the rural and urban zones of Galapagos. Charles Darwin Foundation, Galapagos, Ecuador.
Charles Darwin Research Station. 2005. CDRS Herbarium records.
Nash, Dorothy L./Williams, Louis O. 1976. Flora of Guatemala. Fieldiana: Botany. Vol. 24, Part XII. Chicago Natural History Museum. 603 pp.
U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.
Wiggins, I. L./Porter, D. M. 1971. Flora of the Galapágos Islands. Stanford University Press. 998 pp.