Denomination: 'Evipo013'
Trade name: Chinook
Botanical Name: Clematis
Applicant/Holder: Poulsen Roser A/S
Kratbjerg 332
Tel: 45 48 48 30 28

Raymond J. Evison, Ltd.
Domarie Vineries, Les Sauvagées, St. Sampsons
Channel Islands
United Kingdom
Breeder: Mogens N. Olesen, Poulsen Roser A/S, Fredensborg, Denmark
Raymond J. Evison, Raymond J. Evison, Ltd., Channel Islands, United Kingdom
Agent in Canada: Miller Thomson Pouliot LLP
1000 De La Gauchetière Street West, Suite 3700
Montréal, Quebec
H3B 4W5
Tel: 514-871-5449
Application Date: 2003-10-28
Application Number: 03-3887
Grant of Rights Date: 2008-02-01
Certificate Number: 3128
Date rights surrendered: 2013-04-18

Variety Description

Variety used for comparison: 'Alionushka'

Summary: 'Evipo013' has a longer, wider leaf blade than 'Alionushka'. 'Evipo013' has a narrower sepal than 'Alionushka'. 'Evipo013' differs from 'Alionushka' in the colour of the upper and lower side of the sepal.


PLANT: climbing, strong vigour, moderate pubescence on young shoot

LEAVES: simple and pinnate
TERMINAL LEAFLET: medium length and width, ovate, acute to cuspidate apex, obtuse base, entire margin, no lobing, medium green on upper side, no variegation, moderate rugosity

FLOWERS: clustered arrangement, very long peduncle, downwards orientation, single flower type, small diameter, campanulate shape, weak fragrance, flowers on current year's growth
SEPALS: four, short to medium length, narrow to medium width, obovate, flat to convex in cross section, medium reflexing of apex, acute to apiculate apex, type one base shape, violet to dark violet on upper side, blue violet secondary colour in central bar, light blue violet along margin on lower side, blue violet secondary colour in central bar on lower side, medium to strong undulation on margin, weak to medium twisting along longitudinal axis, no petaloid staminodes
STAMEN: cream coloured filament, yellow anthers.

Origin & Breeding History: 'Evipo013' originated from a chance pollination of unnamed parent plants. Seed was planted in December 1997 and germinated during the winter and early spring. In July 1998, 'Evipo013' was selected in the greenhouse at Guernsey, Channel Islands, United Kingdom. Selection criteria included non-clinging habit, profusion of semi-nodding flowers, summer flowering, suitability to garden situations and cold tolerance to United States Department of Agriculture Hardiness zone 3.

Tests & Trials: 'Evipo013' was tested at St. Thomas, Ontario. Ten bare root liners of both the candidate and reference variety were planted in the field on September 18, 2004. Plants were spaced .6 metres apart and trained to grow along a trellis. Observations and measurements were taken from 10 plant parts on June 15, 2006. All colour measurements were made using the 2001 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'Evipo013' with reference variety 'Alionushka'

Leaf blade length (cm)

  'Evipo013' 'Alionushka'
mean 6.7 3.2
std. deviation 0.42 0.65

Leaf blade width (cm)

  'Evipo013' 'Alionushka'
mean 3.7 1.6
std. deviation 0.48 0.46

Sepal width (cm)

  'Evipo013' 'Alionushka'
mean 2.1 3.9
std. deviation 0.30 0.51

Colour of sepal (RHS)

  'Evipo013' 'Alionushka'
main - upper side N82C-83D N78C-D
secondary - upper side 83C N/A
main - lower side 85A 77C
secondary - lower side 83C (central bar) 70B (central bar)

Click on image for larger view
Clematis: 'Evipo013' (left) with reference variety 'Alionushka' (right)

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