Hackelia diffusa (Lehm.) I.M. Johnst.
spreading stickseed (spreading hackelia)
Boraginaceae (Borage family)

Introduction to Vascular Plants

Photograph

© Thayne Tuason     (Photo ID #76289)


Map

E-Flora BC Static Map

Distribution of Hackelia diffusa
Click here to view the full interactive map and legend

SUBTAXA PRESENT IN BC

Hackelia diffusa var. diffusa

Species Information

General:
Perennial herb from a taproot; stems several or sometimes single, spreading stiff-hairy on lower half, more appressed, upswept, straight-hairy above, 20-70 cm tall.
Leaves:
Basal leaves well-developed, persistent, stalked, oblanceolate or narrowly elliptic, 6-18 cm long and 8-25 mm wide; stem leaves ample, mostly unstalked and sometimes also clasping upward, lanceolate or lance-oblong to lance-elliptic, 5-12 cm long, 8-18 mm wide; stiff-hairy or appressed, coarsely straight-hairy, entire, alternate.
Flowers:
Inflorescence of several elongating, narrow clusters with leafy bracts at the base; petals white (rarely blue), fused at base into a short, narrow tube that spreads (7-12 mm wide) at top to 5 lobes, with 5 pimply, fuzzy, yellow bulges at the throat.
Fruits:
Nutlets 4, clustered together, with marginal, barb-tipped prickles distinct nearly to the base, facial prickles 8-30, much shorter than marginal ones.

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 Hackelia diffusa

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)
1856 1444 2394
Slope Gradient (%)
45 5 86

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

73 30 280
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
3 1 5
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
9
Modal BEC Zone Class
ESSF

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

AT(1), ESSF(5), MS(3)

Habitat and Range

Dry grasslands, shrublands and forest openings in the steppe and lower montane zones; rare in SC BC; S to WA and OR.

SourceThe Illustrated Flora of British Columbia