Tanacetum cinerariifolium (Trevir.) Sch. Bip., Asteraceae

Click on an image for links to BIGGER PICTURES

Present on Pacific Islands?  no

Primarily a threat at high elevations?  yes

Risk assessment results:  Evaluate, score: 3 (Go to the risk assessment)

Other Latin names:  Chrysanthemum cinerariifolium (Trevir.) Vis.; Pyrethrum cinerariifolium Trevir.

Common name(s): [more details]

Chinese: chu chong ju

English: Dalmatian insect-flower, Dalmatian pyrethrum, pyrethrum

French: pyrèthre, pyrèthre de Dalmatie

Japanese: shirobana-mushi-yokegiku

Korean: jechunggug

Spanish: pelitre, piretro

Habit:  herb

Description:  "Caespitose, silvery-grey, sericeous perennial.  Stems 15-45 cm.  Leaves pinnatipartite, glandular-punctate; basal 10-20 cm, petiolate, lanceolate to oblong, the segments pinnatisect to palmatisect, narrowly lanceolate to oblong-lanceolate; cauline similar but shortly petiolate.  Capitula solitary; involucre 12-18 mm.  Ligulate florets white, female; ligules 8-16 mm.  Achenes 2.5-3.5 mm, 5- to 7-ribbed.  Pappus an irregularly lobed corona 0.6-1 mm (Tutin, 1964; vol. 5, p. 171).

Habitat/ecology:  "Pyrethrum is grown in northern temperate countries and tropical areas at higher altitudes. Plants are susceptible to frost. In Kenya, crops are grown from 1,800 to 2,700 m in elevation"  (HPWRA risk assessment).

Propagation:  Seed

Native range:  Balkans; also cultivated and naturalized (GRIN).

Presence:

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	introduced	Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 189)

Control:  If you know of control methods for Tanacetum cinerariifolium, please let us know.