Denomination: 'RIKAV38602'
Trade name: Superbena Royal Romance
Botanical Name: Verbena
Applicant/Holder: Plant 21 LLC
32149 Aquaduct Road
Bonsall, California
United States of America
Breeder: Rika Matsumoto, Shiga, Japan
Agent in Canada: BioFlora Inc.
38723 Fingal Line
R.R. #1
St. Thomas, Ontario
N5P 3S5
Tel: 519-631-6241
Application Date: 2016-05-26
Application Number: 16-8934

Variety Description

Variety used for comparison: 'KLEVP08383' (Lascar Burgundy)

Summary: The intensity of anthocyanin colouration of the stem is medium for 'RIKAV38602' whereas the intensity is absent or very weak for 'KLEVP08383'. The leaf of 'RIKAV38602' is larger than the leaf of 'KLEVP08383'. The upper side of the leaf blade is medium green for 'RIKAV38602' whereas the leaf blade is dark green for 'KLEVP08383'. The corolla of 'RIKAV38602' has an eye zone whereas the corolla of 'KLEVP08383' does not have an eye zone. The margin of the corolla lobe of 'RIKAV38602' has a medium degree of undulation whereas the margin of the corolla lobe of 'KLEVP08383' has weak undulation. The main colour of the inner side of the corolla lobe of 'RIKAV38602' is dark purple red with brown purple near the eye zone whereas the corolla lobe of 'KLEVP08383' is dark purple red with purple at the apex.


PLANT: creeping growth habit

STEM: medium intensity of anthocyanin colouration

LEAF BLADE: broad ovate shape, no divisions, crenate margin, medium green upper side, no anthocyanin colouration of upper side

INFLORESCENCE: broad ovate shape in profile
CALYX: anthocyanin colouration on teeth of margin only
COROLLA: arrangement of lobes is not touching to touching
COROLLA (INNER SIDE): small diameter eye zone, white eye bordered with pink
COROLLA LOBE: incurved along longitudinal axis, medium undulation of margin
COROLLA LOBE (INNER SIDE): one colour (excluding eye zone) in shaded pattern, distribution of colour is lighter towards apex, dark purple red (RHS 187B) with brown purple (RHS 187A) towards eye zone, no change of colour with age
COROLLA TUBE: tips of protruding hairs are white

Origin & Breeding History: 'RIKAV38602' was bred and developed by the breeder, Rika Tsutsumi, in Higashiomi, Shiga, Japan. It originated from a controlled cross conducted on May 20, 2013, between a seedling designated '12V258-05', as the female parent, and a seedling designated '08V665-05', as the male parent. From the resulting progeny, 'RIKAV38602' was selected on June 11, 2014, in Bonsall, California, USA, for its branching habit, flower size, and resistance to powdery mildew. Asexual reproduction of 'RIKAV38602' was first conducted by vegetative cutting on June 12, 2014, in Bonsall, California, USA.

Tests & Trials: The comparative trial of 'RIKAV38602' was conducted in a polyhouse during the spring of 2017 at BioFlora Inc., in St. Thomas, Ontario. The trial included a total of 20 plants each of the candidate and reference variety. All plants were grown from rooted cuttings and transplanted into shallow, 15 cm pots on April 24, 2017. The observations and measurements were taken from 10 plants or 10 parts of plants of each variety on June 7, 2017. All colour determinations were made using the 2007 Royal Horticultural Society (RHS) Colour Chart.

Comparison tables for 'RIKAV38602' with reference variety 'KLEVP08383'

Leaf length (cm)

  'RIKAV38602' 'KLEVP08383'
mean 4.6 2.6
std. deviation 0.41 0.32

Leaf width (cm)

  'RIKAV38602' 'KLEVP08383'
mean 3.1 1.7
std. deviation 0.09 0.18

Colour of corolla lobe (RHS)

  'RIKAV38602' 'KLEVP08383'
inner side redder than 187B with 187A towards eye zone 53A with darker than N74A at apex

Click on image for larger view
Verbena: 'RIKAV38602' (left) with reference variety 'KLEVP08383' (right)

Click on image for larger view
Verbena: 'RIKAV38602' (left) with reference variety 'KLEVP08383' (right)

Click on image for larger view
Verbena: 'RIKAV38602' (left) with reference variety 'KLEVP08383' (right)

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