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

Silene uralensis subsp. attenuata (Rupr.) Bocquet
nodding campion (apetalous catchfly)
Caryophyllaceae (Pink family)

Introduction to Vascular Plants
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Distribution of Silene uralensis subsp. attenuata
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Species Information

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General:
Perennial herb from a branched stem-base; stems ascending to erect, usually several, usually simple, finely white-hairy below, becoming glandular above, 20-60 cm tall.
Leaves:
Basal leaves in tufts, narrowly oblanceolate, glabrous to nearly glabrous, 2-4 cm long, 1.5-4 mm wide, narrowed to slender stalks; stem leaves opposite, usually 2-3 (4) pairs, somewhat narrower than the basal leaves, hairy with multicellular hairs, unstalked; stipules lacking.
Flowers:
Inflorescence of usually solitary, erect flowers, nodding in the bud, usually perfect; petals 5, purplish or rarely pinkish, stalked, the stalks about equalling or exceeded by the calyces, flared above and usually flanged at the bases, the blades generally narrower than the stalks, 3-4 mm long, 2-cleft; sepals 5, united, forming a tube about 1 cm long at flowering time, considerably inflated and up to 17 mm long in fruit, prominently 10-nerved, glandular-hairy.
Fruits:
Capsules 1.2-2.2 cm long, 5-valved; seeds 1.5-2.5 mm long, prominently wrinkled-pimply in concentric rows, usually more or less flattened and wing-margined.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry river banks, talus slopes and meadows from the montane to alpine zones; infrequent, scattered throughout N and E BC; circumpolar, N to AK, YT and NT and E to AB; N Eurasia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Silene uralensis ssp. attenuata

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) 1672 1875 2078
Slope Gradient (%) 49 52 55.4
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 73 148
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 1 2
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
2
Modal BEC Zone Class
BAFA
All BEC Zones (# of stations/zone) species was recorded in: BAFA(1), ESSF(1)

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

Lychnis apetala subsp. attenuata
Lychnis apetala var. attenuata
Lychnis attenuata Farr
Melandrium apetalum subsp. attenuatum (Farr) Hara
Silene attenuata (Farr) Bocquet
Silene wahlbergella subsp. attenuata (Farr) HultTn
Wahlbergella attenuata (Farr) Rydb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References