Black Beauty

Rudbeckia

Denomination: 'Black Beauty'
Trade name: Black Magic
Botanical Name: Rudbeckia occidentalis
Applicant/Holder: Future Plants Licentie B.V.
Turfspoor 53A
2165 AW
Lisserbroek
Netherlands
Breeder: Hubertus Gerardus Oudshoorn, Rijpwetering, Netherlands
Agent in Canada: Variety Rights Management
475 County Road 18
R.R. #2
Oxford Station, Ontario
K0G 1T0
Canada
Tel: 613-258-9015
Application Date: 1999-12-23
Application Number: 99-2086
Grant of Rights Date: 2003-11-25
Certificate Number: 1658
Grant of Rights Termination Date: 2021-11-25

Variety Description

Variety used for comparison: 'Green Wizard'

Summary: 'Black Beauty' produces a smaller plant with smaller leaves than 'Green Wizard'. The shape of the base of the leaf blade in 'Black Beauty' is attenuate to obtuse while it is cordate in 'Green Wizard'. 'Black Beauty' has a leaf blade margin that is unlobed and dentate while 'Green Wizard' has lobed leaves that are dentate. The petiole of 'Black Beauty' has very weak anthocyanin colouration while in 'Green Wizard' there is none. 'Black Beauty' has a shorter peduncle than 'Green Wizard'. The capitulum length is shorter in 'Black Beauty' than in 'Green Wizard'.

Description:

'Black Beauty' is a perennial that has a upright bushy growth habit, with a sparse degree of branching. It is propagated vegetatively. The stem is medium green in colour with very weak anthocyanin colouration. The stem has no glaucosity or pubescence. The leaf is a simple type arranged alternately and at the base in a rosette arrangement. The leaf is ovate in shape with an acute shaped apex, and an attenuate to obtuse shaped base. The leaf blade margin is unlobed and dentate. The upper side of the leaf is dark green in colour with no variegation, and very sparse pubescence. There is a petiole present that has very weak anthocyanin colouration. The peduncle has no anthocyanin colouration.

'Black Beauty' flowers once early to mid season for a moderate amount of time. The inflorescence head is found terminally with an erect attitude. There is a disc present and the floret is black in colour.

Origin & Breeding History: 'Black Beauty' was selected from a population of seedlings that were the result of open pollination between unnamed Rudbeckia occidentalis seedlings. The discovery was made by the breeder in Rijpwetering, The Netherlands in 1994. The selection criteria were improved floral traits, and good form and habit.

Tests & Trials: Were conducted for 'Black Beauty' during the summer of 2002, at Oxford Station, Ontario. Trials consisted of ten plants of each variety grown in field plots spaced approximately 0.4 metres within the row and 1.0 metre between the rows. Measured characteristics were based on ten measurements unless indicated otherwise.


Comparison tables for 'Black Beauty' with reference variety 'Green Wizard'

Plant height (cm)

  'Black Beauty' 'Green Wizard'
mean 96.86 102.57
std. deviation 21.73 13.73

Plant width (cm)

  'Black Beauty' 'Green Wizard'
mean 57.40 69.00
std. deviation 5.03 9.62

Leaf blade length (cm)

  'Black Beauty' 'Green Wizard'
mean 14.60 17.40
std. deviation 1.52 1.82

Leaf blade width (cm)

  'Black Beauty' 'Green Wizard'
mean 6.90 7.28
std. deviation 0.80 0.57

Peduncle length (cm)

  'Black Beauty' 'Green Wizard'
mean 13.43 17.83
std. deviation 2.23 1.94

Capitulum length (cm)

  'Black Beauty' 'Green Wizard'
mean 3.45 4.97
std. deviation 0.19 0.28
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