Castilleja ambigua var. ambigua
estuarine paintbrush
Scrophulariaceae (Butterfly-bush family)

Introduction to Vascular Plants

Photograph

© Hans Roemer     (Photo ID #10224)


Map

E-Flora BC Static Map

Distribution of Castilleja ambigua var. ambigua
Click here to view the full interactive map and legend

Species Information

General:
Annual herb from a taproot; stems decumbent to ascending, 10-35 cm long/tall, simple or often branched, minutely to coarsely spreading-hairy.
Leaves:
Alternate, unstalked, lanceolate to oblong or egg-shaped, 1-5 cm long, entire below, pinnately 3- to 5-toothed or -lobed above, rough-short-hairy.
Flowers:
Inflorescence a dense, compact, prominently bracted, terminal spike 3-12 cm long, the bracts greenish tipped with white, yellow or pink, 14-22 mm long, oblong to egg-shaped, differing gradually from the leaves, becoming palmately cleft into 2 to 8, short, blunt or rounded lobes; corollas yellow with purple markings, 14-25 mm long, exceeding the bracts and calyces, tubular, club-shaped, 2-lipped, the upper lip beak-like, minutely hairy, straight, 4-5 mm long, the lower lip 3-4 mm long, somewhat inflated, 3-pouched, tipped with 3 erect, slender, purple teeth 1-3 mm long; calyces tubular, long-hairy, 12-20 mm long, 2-cleft, each segment 2-lobed, the lobes linear, shorter than the tube, coloured like the tips of the bracts; stamens 4.
Fruits:
Capsules, ellipsoid, 8-12 mm long; seeds several, 1-2 mm long, with tight-fitting netted coats.

SourceThe Illustrated Flora of British Columbia

Illustration

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.

Ecology

Ecological Framework for Castilleja ambigua var. ambigua

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

Avg

Min

Max

Elevation (metres)
Slope Gradient (%)
15 15 15

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

200 200 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 2
Modal Nutrient Regime
Class
# of field plots
 species was recorded in:
1
Modal BEC Zone Class

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

Habitat and Range

Moist to wet vernal sites, tidal marshes or open grassy brackish sites in the lowland zone; rare on S Vancouver Island; S to CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Castilleja ambigua Hook. & Arn.