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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Phacelia linearis (Threadleaf phacelia)
Glase, Terry

Phacelia linearis

Phacelia linearis (Pursh) Holz.

Threadleaf Phacelia

Hydrophyllaceae (Waterleaf Family)



USDA Native Status: L48 (N), CAN (N)

Slender, commonly branched, erect stems are topped with reddish-lavender flowers in loose coils.

A common, showy species distinguished from other Phacelias by its comparatively large, broad corolla and narrow leaves.


From the Image Gallery

5 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb

Bloom Information

Bloom Color: White , Purple
Bloom Time: Apr , May , Jun


USA: CA , CT , ID , ME , MT , NV , OR , SD , UT , WA , WY
Canada: AB , BC
Native Distribution: Southern British Columbia to northern California; east across much of Utah and Idaho to western Wyoming.
Native Habitat: Among brush and in open grassy areas in foothills and on plains.

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Additional resources

USDA: Find Phacelia linearis in USDA Plants
FNA: Find Phacelia linearis in the Flora of North America (if available)
Google: Search Google for Phacelia linearis


Record Modified: 2014-10-17
Research By: TWC Staff

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