Phacelia tanacetifolia Benth., Boraginaceae

Click on an image for links to BIGGER PICTURES

Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 5 (Go to the risk assessment)

Common name(s): [more details]

English: fiddleneck, lacy phacelia, lacy scorpion-weed, phacelia, tansy, tansy phacelia

French: phacelia, phacélie, phacélie à feulles de tanaisie

Spanish: facelia

Habit:  herb

Description:  "Erect or suberect, ± hairy annual, to c. 1 m high; mature stems sparingly hairy. Leaves pinnate, to c. 10 x 6 cm; leaflets pinnatifid, usually white-hirsute when young, especially below; lobes of leaflets < 1-5 mm long, ± oblong, crenate to deeply serrate. Cymes scorpioid, terminal, many-flowered, glandular and tomentose and with prominently long white hairs; branches to c. 10 cm long at fruiting. Pedicels short. Flowers fragrant. Calyx 4.5-7 mm long, linear or nearly so, densely hirsute. Corolla 6-8 mm long, lavender or pale mauve, with darker veins; limb 7-10 mm in diameter; lobes rounded, slightly < tube. Filaments with corolla scales adnate to base, long- exserted, glabrous, bluish mauve. Style 2-fid almost to base, pale bluish mauve, hairy towards base. Ovary densely white-hirsute. Capsule c. 4 mm long, elliptic-ovoid, hairy towards apex. Seeds 2.5-3 mm long, ± ellipsoid, strongly pitted, sharply keeled"  (Webb et al., 1988; p. 759).

Habitat/ecology:  In New Zealand: "vegetable gardens and waste places in gardens, sometimes cultivated as an ornamental"  (Webb et al., 1988; p. 759).  In California (U.S.) (Native), "sandy to gravelly slopes, open areas, < 2000 m"  (Jepson Manual online).

Propagation:  Seed

Native range:  Mexico (Baja Norte) and southwestern United States (GRIN).

Presence:

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia Australia (continental)	Australia (continental)	introduced invasive	U.S. Dept. Agr., Agr. Res. Serv. (2011) South Australia Naturalized
Australia Australia (continental)	New South Wales	introduced invasive	National Herbarium of New South Wales (2011) Garden escape, not common.
Mexico Mexico	Mexico (United Mexican States)	native	U.S. Dept. Agr., Agr. Res. Serv. (2011) Baja Norte
New Zealand New Zealand	New Zealand (country)	introduced invasive cultivated	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 759)
United States (west coast) United States (west coast states)	USA (Oregon)	native	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)
United States (west coast) United States (west coast states)	USA (California)	native	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011)

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)	United States (other states)	native	U.S. Dept. Agr., Nat. Res. Cons. Serv. (2011) Arizona, Colorado, Kansas, Nevada

Additional information:
Plant profile from California State University Stanislas (PDF).

Additional online information about Phacelia tanacetifolia is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Phacelia tanacetifolia as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Phacelia tanacetifolia may be available from the Germplasm Resources Information Network (GRIN).

References:

Hickman, J. C. 1993. The Jepson manual: higher plants of California. U. Cal. Press, Berkeley. 1400 pp.

National Herbarium of New South Wales. 2011. PlantNet: New South Wales Flora online. The Plant Information Network System of the Botanic Gardens Trust Version 2.0. Online resource.

U. S. Government. 2011. Integrated Taxonomic Information System (ITIS) (on-line resource).

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

U.S. Dept. Agr., Nat. Res. Cons. Serv. 2011. The PLANTS Database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. 1988. Flora of New Zealand, Volume IV: Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch. 1365 pp.