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

Arcteranthis cooleyae
Cooley's buttercup
Ranunculaceae (Buttercup family)

Introduction to Vascular Plants

© Hans Roemer  Email the photographer   (Photo ID #64126)

E-Flora BC Static Map
Distribution of Arcteranthis cooleyae
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.



General:
Perennial herb from fibrous-rooted stem-base; stems erect, 2-14 cm tall in flower, to 23 cm in fruit, smooth.
Leaves:
All basal, circular to kidney-shaped, deeply palmately 3- to 5-lobed, the edges overlapping somewhat, 1-4 cm long, 1.5-7 cm wide, the lobes again lobed, the ultimate segments elliptic or oblong, margins toothed, tips rounded and bearing minute projecting vein tips, the stalks to 15 cm long; stem leaves none to 2, scale-like.
Flowers:
Inflorescence a solitary terminal flower; flower stalks to 14 cm long; receptacle smooth; petals 11 to 15, distinct, yellow, oblanceolate to spoon-shaped, 8-12 mm long, 3-5 mm wide, long-clawed, nectary on upper surface, the nectary scale divided and V-shaped; sepals 5, spreading, persistent, greenish-yellow, 7-11 mm long, 4-7 mm wide, smooth; stamens (50) 75-125; pistils (30) 70-100.
Fruits:
Achenes, numerous in a globe-shaped head 7-8 mm long, 9-10 mm wide, the achenes elliptic, 2.4-4.6 mm long, 1.2-2.2 mm wide, smooth, membranous, margins and faces strongly veined; beaks persistent, thread-like, 1-1.8 mm long, hooked at tip.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to moist snowbeds, streambanks, ledges, gullies, scree slopes and heath in the subalpine and alpine zones; common in NW BC (including the Queen Charlotte Islands), infrequent in SW BC, rare east of Coast Mountains; N to AK and S to WA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Arcteranthis cooleyae

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) 690 1344 1695
Slope Gradient (%) 0 29 88
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
13 348 300
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 5
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
19
Modal BEC Zone Class
CMA
All BEC Zones (# of stations/zone) species was recorded in: BAFA(2), CMA(8), ESSF(2), MH(5), SWB(1)

Synonyms and Alternate Names

Ranunculus cooleyae Vasey & Rose

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References