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

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

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #16376)

E-Flora BC Static Map
Distribution of Plectritis macrocera
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Species Information

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General:
Annual herb from a taproot; stems erect, solitary, simple, finely glandular, especially when flowering, otherwise smooth or nearly so, 10-60 cm tall.
Leaves:
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.
Flowers:
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.
Fruits:
Achenes, dry, 2-4 mm long, convex side of body not keeled, grooved lengthwise, winged, the wing margins thickened, smooth or evenly hairy.

Source: The Illustrated Flora of British Columbia

Habitat / 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.

Source: The Illustrated Flora of British Columbia

Ecology

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

Minimum

Average

Maximum

Elevation (metres) 92 316 650
Slope Gradient (%) 18 51 84
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
23 38 290
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 4
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
9
Modal BEC Zone Class
CDF
All BEC Zones (# of stations/zone) species was recorded in: CDF(5), ICH(1), IDF(1), PP(2)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Plectritis macrocera subsp. grayi (Suksd.) Morey

Taxonomic and Nomenclatural Links

Additional Photo Sources

Related Databases

General References