Phacelia sericea (Graham) A. Gray
silky phacelia
Hydrophyllaceae (Waterleaf family)

Introduction to Vascular Plants

Photograph

© Jim Riley     (Photo ID #28706)


Map

E-Flora BC Static Map

Distribution of Phacelia sericea
Click here to view the full interactive map and legend

Species Information

General:
Perennial herb from a branched stem-base and a taproot; stems several, ascending to erect, silky spreading-hairy during flowering otherwise, appressed stiff-hairy to fine grey-hairy, 10-40 cm tall.
Leaves:
Basal and lower stem leaves alternate, oblong to oblanceolate in outline, stalked, pinnatifid, the lobes linear-oblong, silky spreading hairy, at least when young, 2-6.5 cm long; middle and upper stem leaves similar, reduced upwards.
Flowers:
Inflorescence a coiled, 1-sided, short, dense, spike-like, terminal cluster; corollas dark blue or purple, hairy inside and out, 5-6 mm long and wide; calyces hairy, the lobes linear; stamens long-exserted, 2-3 times as long as the corolla, glabrous.
Fruits:
Capsules; seeds 8-18, 1-2 mm long, pitted.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Phacelia sericea

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

Avg

Min

Max

Elevation (metres)
2100 252 2661
Slope Gradient (%)
46 0 86

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

179 15 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 0 5
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
156
Modal BEC Zone Class
ESSF

All BEC Zones (# of stations/zone) species was recorded in

AT(29), BAFA(6), CMA(2), ESSF(93), IDF(1), IMA(15), MH(1), MS(5)

Habitat and Range

Dry rocky slopes, scree slopes, talus slopes, meadows and forest openings from the montane to alpine zones; common in and E of the Coast-Cascade Mountains in S BC, rare on Vancouver Island; E to SW AB and S to CO, NV and N CA, reportedly disjunct in E AK.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Phacelia sericea subsp. sericea (Graham) A. Gray