Trautvetteria caroliniensis (Walter) Vail
false bugbane (Carolina bugbane)
Ranunculaceae (Buttercup family)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #6972)


E-Flora BC Static Map

Distribution of Trautvetteria caroliniensis
Click here to view the full interactive map and legend

Species Information

Perennial herb from widespread slender rhizomes and tufts of fibrous roots; stems 1 to several, erect, 50-80 (100) cm tall, unbranched below inflorescence, smooth or becoming so.
Basal leaves simple, long-stalked (to 45 cm), 10-30 cm wide, palmately 5- to 11-lobed, the segments broadly wedge-shaped, margins irregularly cut to sharp-toothed, the veins conspicuous, smooth above, usually somewhat hairy and paler below; stem leaves 1 or 2, alternate, short-stalked, reduced toward top of stem.
Inflorescence many-flowered, terminal, somewhat flat-topped clusters, the stalks of the inflorescence 10-50 cm tall, the bracts small, linear-lanceolate; petals absent; sepals 3-5 (-7), greenish-white, concave-cupped, broadly egg-shaped, clawed, 3-6 mm long; stamens 50-100, the filaments white, 5-10 mm long, the outer ones 15-20 and narrowly spoon-shaped, the inner not dilated; pistils about 15.
Achene-like utricles in a cluster, papery, 3-4 mm long, prominently veined on the 4 angles, unstalked; beaks 0.4-0.8 mm long, curved or hooked.

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 Trautvetteria caroliniensis

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)
293 0 1980
Slope Gradient (%)
7 0 190

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

0 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 2 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

BWBS(1), CDF(2), CWH(389), ESSF(8), ICH(9), IDF(1), MH(10), MS(1), PP(1), SBS(2)

Habitat and Range

Moist forests in the lowland and montane zones; common on Vancouver Island, infrequent on mainland coast north to 53ÝÜN, rare in SE BC; S to MO, PA, FL, NM, AZ, ID, OR and CA.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Trautvetteria caroliniensis var. occidentalis (A. Gray) C.L. Hitchc.