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

Silene antirrhina L.
sleepy catchfly (sleepy silene)
Caryophyllaceae (Pink family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #3934)

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Distribution of Silene antirrhina
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Species Information

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Annual herb from a taproot; stems erect, slender, simple to branched, more or less downsweptly short-hairy below, becoming glabrous above, usually purplish sticky-glandular in bands below the nodes or occasionally nonglandular, 20-80 cm tall.
Basal leaves oblanceolate to spoon-shaped, 3-6 cm long and 2-20 mm wide; stem leaves opposite, several pairs, oblanceolate to linear, glabrous to rough-hairy or short-hairy; stipules lacking.
Inflorescence of few to many flowers in a compact to open cluster; petals 5, white to pink, usually withered by day, stalklike at the bases, the narrow stalks about 2-3 times as long as the heart-shaped blades; sepals 5, united, forming a tube 4-10 mm long, 10-nerved, glabrous.
Capsules egg-shaped, 3-chambered; seeds blackish, 0.6-1.0 mm long, with 3-4 concentric rows of low pimples.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry roadsides, fields and open forests in the lowland, steppe and montane zones, frequent in S BC; E to PQ and NB and S to TX, AZ, NM and MX.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Silene antirrhina

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) 335 704 1128
Slope Gradient (%) 0 40 85
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
70 182 335
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 3
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(7), ICH(8), IDF(5), PP(2)


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

Silene antirrhina var. confinis Fernald
Silene antirrhina var. depauperata Rydb.
Silene antirrhina var. divaricata B.L. Rob.
Silene antirrhina var. laevigata Engelm. & A. Gray
Silene antirrhina var. subglaber Engelm. & A. Gray
Silene antirrhina var. vaccarifolia Rydb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References