Plectritis macrocera Torr. & A. Gray
long-spurred plectritis (longhorn plectritis)
Caprifoliaceae (Valerian family)
(Previously in Valerianaceae)

Introduction to Vascular Plants


© Jamie Fenneman     (Photo ID #16376)


E-Flora BC Static Map

Distribution of Plectritis macrocera
Click here to view the full interactive map and legend

Species Information

Annual herb from a taproot; stems erect, solitary, simple, finely glandular, especially when flowering, otherwise smooth or nearly so, 10-60 cm tall.
Basal leaves soon deciduous; stem leaves opposite, lowermost leaves egg-shaped with short-stalks, others more oblong or elliptic and stalkless, smooth or nearly so, 1-4.5 cm long, 3-18 mm wide.
Inflorescence of terminal, more or less cylindric clusters; corollas white or pale pink, 2-3.5 mm long, 2-lobed, with a thick spur, the tip not enlarged; calyces lacking.
Achenes, dry, 2-4 mm long, convex side of body not keeled, grooved lengthwise, winged, the wing margins thickened, smooth or evenly hairy.

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 Plectritis macrocera

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)
316 92 650
Slope Gradient (%)
51 18 84

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

38 23 290
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 1 4
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

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

CDF(5), ICH(1), IDF(1), PP(2)

Habitat and Range

Vernally moist sites in the lowland, steppe and lower montane zones; infrequent in SW and SC BC, rare in SE BC; S to MT, UT, NV and CA.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Plectritis macrocera subsp. grayi (Suksd.) Morey