Boykinia occidentalis Torr. & A. Gray
coast boykinia (coastal brookfoam)
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants


© Jeanne Ross     (Photo ID #16492)


E-Flora BC Static Map

Distribution of Boykinia occidentalis
Click here to view the full interactive map and legend

Species Information

Perennial herb from rhizomes; stems slender, leafy, 15-60 cm tall, brownish- to reddish-hairy, often glandular-hairy.
Basal and lower stem leaves long-stalked, heart- to kidney-shaped, 2-8 cm wide, 5- to 7-cleft to about 1/2 their length, 2- to 3-times sharply-toothed, the teeth bristle-tipped; upper stem leaves unstalked; stipules slightly winged with several, long brownish bristles.
Inflorescence a terminal, open, compound panicle, the stalks reddish, densely glandular; flowers slightly irregular; petals white, 5-6 mm long, spoon-shaped to oblanceolate, short-clawed, deciduous; calyces 4-5 mm long, top- to urn-shaped, lobed about 1/3 length into narrowly lance-shaped segments, the lobes smooth, the base attached to ovary, glandular; stamens 5, shorter than sepals; pistils solitary, the ovary over 1/2 inferior.
Capsules, beaked; seeds black, minutely spiny.

SourceThe Illustrated Flora of British Columbia


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.


Ecological Framework for Boykinia occidentalis

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)
190 1 1620
Slope Gradient (%)
13 0 100

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

51 8 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 0 8
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

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

CWH(108), MH(1)

Habitat and Range

Moist woodlands, meadows and streambanks in the lowland and montane zones; frequent on Vancouver Island and the adjacent mainland; S to CA.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Boykinia elata (Nutt.) Greene
Boykinia vancouverensis (Rydb.) Fedde