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

Aphyllon uniflorum
naked broomrape
Orobanchaceae (Broom-rape family)

Introduction to Vascular Plants

© Bryan Kelly-McArthur  Email the photographer   (Photo ID #74916)

E-Flora BC Static Map
Distribution of Aphyllon uniflorum
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Parasitic herb from a coarse, tuber-like, fleshy root; stems single or clustered, usually smooth except finely glandular-hairy above, 5-15 cm tall.
Basal leaves lacking; stem leaves scaly-bracteate, alternate, lance shaped, smooth.
Inflorescence of single flowers, 1-3 per plant; corollas purplish, sometimes yellowish, 1.5-3.5 cm long, the lips similar to the other lobes, finely fringed, stalked, the leafless stalks 3-12 cm long; calyces 4-12 mm long, the unequal, narrow lobes fringed; 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 on Sedum, Saxifragaceae, Asteraceae and others; moist to dry meadows and forest openings in the lowland, steppe and montane zones; common on SE Vancouver Island and Gulf Islands, infrequent eastward in S BC; E to NF and S to FL, TX and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Aphyllon uniflorum

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) 31 857 1780
Slope Gradient (%) 0 36 80
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 216 340
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 5
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: BG(1), CDF(2), CWH(2), ESSF(2), ICH(4), IDF(2), MS(3), PP(1)

Synonyms and Alternate Names

Orobanche uniflora L.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References