Pacific Island Ecosystems at Risk (PIER)

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Coreopsis basalis
(A. Dietr.) S. F. Blake, Asteraceae
No images for this taxon


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: goldenmane tickseed

Habit:  herb

Description:  "Annuals, 10-50+ cm. Aerial nodes proximal to first peduncle usually 5-10+, distalmost 1-3 internodes 4-7(-10) cm. Leaves: basal and cauline on proximal 3/4-7/8 of plant heights; petioles 8-35(-120) mm; blades simple or 1(-2)-pinnately lobed with 3-9+ lobes, simple blades or terminal lobes elliptic or lanceolate to oblanceolate or linear, 25-55+ x (1-)2-9(-20) mm. Peduncles 6-15+ cm. Calyculi of lance-deltate to linear bractlets 6-9(-12+) mm. Phyllaries lance-ovate, 7-9+ mm. Ray laminae yellow, usually each with a proximal, red-brown to purple spot or band, 15-20+ mm. Disc corollas 3-4 mm, apices red-brown to purple. Cypselae 1.2-1.8 mm, wingless (margins ± inrolled adaxially, ± corky)" (Flora of North America)

Habitat/ecology:  "Sandy soils in open, often disturbed, places" (Flora of North America)

Propagation:  Seed

Native range:  South-central and southeastern United States; naturalized in southeastern United States (GRIN)

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Marshall Islands
Ralik Chain
Jaluit (Jãlwõj) Atoll introduced
Fosberg, F. Raymond (1990) (p. 38)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 190)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (continental except west coast)
United States (other states)
USA (Florida)   U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)

Comments:  Reported invasive in Japan (The Research Institute for Bioresources. Okayama University. Laboratory of Wild Plant Science. Naturalized plants from foreign country into Japan).


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 23 NOV 2006 and was last updated on 23 NOV 2006.