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

Boschniakia hookeri Walp.
Vancouver groundcone (poque)
Orobanchaceae (Broom-rape family)

Introduction to Vascular Plants

© Doug Skilton  Email the photographer   (Photo ID #9432)

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Distribution of Boschniakia hookeri
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Species Information

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General:
Parasitic herb from a coarse fleshy root and thickened stem-base; stems single or clustered, stout, up to 3 cm thick above, yellow to red or purple, 8-12 cm tall.
Leaves:
Basal leaves lacking; stem leaves scaly-bracteate, alternate, the bracts entire, overlapping like the bracts on a conifer cone.
Flowers:
Inflorescence of numerous flowers in dense spikes, each flower subtended by a bract; corollas yellow to purple, 1-1.5 cm long with the lower lip shorter than the upper lip; calyces with 2-3 lobes; filaments with tufts of basal hairs.
Fruits:
Capsules, 1-1.5 cm long; seeds numerous, minute, honeycombed.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Parasitic on Gaultheria shallon in moist to mesic forests in the lowland zone; locally frequent on S Vancouver Island and the Gulf Islands, rare on the Queen Charlotte Islands and SW mainland; S to N CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Boschniakia hookeri

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

Minimum

Average

Maximum

Elevation (metres) 2 224 840
Slope Gradient (%) 0 16 80
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
10 205 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 7
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
114
Modal BEC Zone Class
CWH
All BEC Zones (# of stations/zone) species was recorded in: CWH(114)

Ecological Indicator Information

A shade-tolerant/intolerant, submontane to montane, Pacific North American parasite. Occurs in maritime summer­dry cool mesothermal climates on nitrogen-poor soils. Its occurrence decreases with increasing latitude, elevation, and continentality. Sparse in open-canopy, Douglas-fir forests on water-shedding sites. Parasitic on Gaultheria shallon. An oxylophytic species characteristic of Mor humus forms

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)

Climate

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 cool mesothermal.

Synonyms and Alternate Names

Boschniakia strobilacea A. Gray

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References