Denomination: 'Evirida'
Trade name: Pistachio
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: 2001-05-25
Application Number: 01-2748
Grant of Rights Date: 2005-11-23
Certificate Number: 2277
Date rights surrendered: 2016-11-23

Variety Description

Variety used for comparison: Clematis florida

Summary: 'Evirida' has grey-purple coloured anthers while in Clematis florida they are purple-black. The filament of 'Evirida' is white while it is purple-black in Clematis florida.


'Evirida' is a climbing type clematis variety which has dense pubescence on the young shoots. The leaves are ternate, usually with three leaflets. The leaves are ovate in shape, with an acute apex and a rounded base. The leaf blade margins are entire. The leaves of 'Evirida' may be lobed having two or more lobes with medium depth sinuses between the lobes. The leaves are medium green in colour with weak rugosity.

'Evirida' bears solitary, single flowers, which are rotate in shape and face upwards. In lateral view, the flowers are flat. There are six sepals, which are free in arrangement. The flowers of 'Evirida' have an absent to weakly present fragrance.

'Evirida' has sepals which are elliptic in shape. In cross-section the sepals are flat. In longitudinal section they are flat to moderately reflexed. The sepal apex is cuspidate and the base is type 2. Sepals of 'Evirida' are white in colour on the upper side, and white with a pink tips on the lower side. The margin of the sepals has very weak to weak undulation, and there is no twisting along the longitudinal axis. Flowers of 'Evirida' have no petaloid stamens. 'Evirida' has white filaments with grey-purple anthers.

'Evirida' flowers on both the previous year's and current year's growth. It begins flowering mid-season.

Origin & Breeding History: 'Evirida' originated as the result of a mutation of the Clematis florida variety 'Alba Plena' discovered in the Guernsey Clematis Nursery in the Channel Islands, United Kingdom in 1993.

Tests & Trials: Tests and trials for 'Evirida' were established in the field during the spring of 2003, and observations and measurements were taken during the spring/summer of 2004 in St. Thomas, Ontario. Ten bare root liners of the candidate and reference varieties were received January 10, 2003 and planted into 11cm pots and grown in a poly house. Young plants were transplanted to the field on June 17, 2003. Plants were spaced 60cm apart and trained to grow along a trellis. Observations and measurements were taken from 10 plant parts of each variety. All colour measurements were made using the 2001 RHS Colour Chart.

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