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

Aphyllon fasciculatum
clustered broomrape
Orobanchaceae (Broom-rape family)

Introduction to Vascular Plants

© Ian Gardiner  Email the photographer   (Photo ID #24329)

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Distribution of Aphyllon fasciculatum
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Species Information

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Parasitic herb from a coarse, tuber-like, fleshy root; stems single or clustered, short glandular-hairy, yellowish to purplish, 3-20 cm tall.
Basal leaves lacking; stem leaves scaly-bracteate, alternate, short glandular-hairy.
Inflorescence of loose flat-topped, several to many-flowered clusters; corollas yellow to purple-tinged, 1.5-3 cm long, the lips 4-9 mm long, stalked, the leafless stalks 2-15 cm long; calyces 9-11 mm long, the lobes 3-7 mm long, narrow, acute, equaling or slightly shorter than the tubes; anthers smooth or hairy.
Capsules; seeds numerous, angled, net-veined, less than 0.7 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Parasitic, mainly on Artemisia in dry shrublands in the steppe and lower montane zones; frequent in SC BC; rare northward and eastward; N to YT, E to ON, S to IN, MI, CA and N MX.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Aphyllon fasciculatum

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) 190 974 2013
Slope Gradient (%) 0 35 110
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
30 181 345
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 6
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: AT(3), BG(16), BWBS(2), CWH(1), ESSF(2), ICH(1), IDF(19), MS(1), PP(1)

Synonyms and Alternate Names

Orobanche fasciculata Nutt.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References