Phacelia tanacetifolia, Lacy Phacelia
Scientific Name: Phacelia tanacetifolia
Common Name: Lacy Phacelia
Also Called: Lacy Scorpion-weed, Facelia and Fiddleneck
Family: Hydrophyllaceae (Boraginaceae, Hydrophylloideae), the Waterleaf Family
Synonyms: (Phacelia tanacetifolia Benth. subvar. tenuisecta)
Status: Introduced from California.
Size: Up to 3 feet or more usually much less.
Growth Form: Forb/herb; stems erect stiff-hairy (hispid)
Leaves: Green; mostly compound, leaflets lobed (see photo above), stiff-hairs, .
Flower Color: Blue, lavender-blue; bell-shaped, sessile in scorpioid cyme, fruit a capsule.
Flowering Season: March to May.
Elevation: Up to 5,000 feet.
Habitat Preferences: In California sandy or gravelly slopes and open areas.
Recorded Range: An irregular distribution in the United States where Lacy Phacelia is found in; AZ, CA, KS, MA, ME, MI, NV and OR. Native to California and possibly Arizona. Also native to the eastern 2⁄3 of Canada; Baja California and possibly northern Mexico.
U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Wetland Indicator: No information available.
Threatened/Endangered Information: No information available.
The Plant List includes 368 scientific plant names of species rank for the genus Phacelia. Of these 186 are accepted species names.
In Southwest Desert Flora also see Desert Bluebells, Phacelia campanularia; Cleftleaf Wildheliotrope, Phacelia crenulata; Distant Phacelia, Phacelia distans; Varileaf Phacelia, Phacelia heterophylla and Kaweah River Scorpion-weed, Phacelia magellanica.