E-Flora BC: Electronic Atlas of the Flora of British Columbia

Plagiobothrys tenellus (Nutt. ex Hook.) A. Gray
slender popcornflower (Pacific popcornflower)
Boraginaceae (Borage family)

Introduction to Vascular Plants

© Hans Roemer  Email the photographer   (Photo ID #10693)

E-Flora BC Static Map
Distribution of Plagiobothrys tenellus
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Annual herb from a taproot; stems several, simple or few-branched, erect to ascending, 5-25 cm tall, spreading-hairy and often also with backward-pointing, appressed hairs.
Basal leaves in a peristent rosette, 0.7-4 cm long, 2-8 mm wide; stem leaves few, lanceolate, usually smaller than basal leaves, spreading-hairy, entire, alternate.
Inflorescence terminal, coiled, narrow, elongating, sometimes paired clusters (racemes); flowers small; petals fused at the base into a tube that flares (2-4 mm wide) at top to 5 lobes, with 5 bulges at the throat; fruiting calyces 3-5 mm long, ascending-hairy.
Nutlets usually 4, cross-shaped, 1.5-2.5 mm long, warty in rows.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry meadows and coastal bluffs in the lowland zone; rare on S Vancouver Island and the Gulf Islands; S to ID, UT and Baja CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Plagiobothrys tenellus

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres)
Slope Gradient (%) 90 90 90
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
200 200 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 1 1
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in:


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Plagiobothrys asper Greene

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References