U.S. patent number PP32,874 [Application Number 16/602,857] was granted by the patent office on 2021-03-09 for rosa hybrida shrub named `ausgray`.
This patent grant is currently assigned to David Austin Roses Ltd.. The grantee listed for this patent is David Austin Roses Ltd.. Invention is credited to David J. C. Austin.
United States Patent |
PP32,874 |
Austin |
March 9, 2021 |
Rosa hybrida shrub named `AUSgray`
Abstract
A variety of rose plant of the shrub class, named `AUSgray`. The
`AUSgray` is a variety of a rose shrub that produces a cut-flower
rose having a apricot/yellow colored, double bloom in a cupped form
with good vase life and fresh tea fragrance.
Inventors: |
Austin; David J. C.
(Wolverhampton, GB) |
Applicant: |
Name |
City |
State |
Country |
Type |
David Austin Roses Ltd. |
Wolverhampton |
N/A |
GB |
|
|
Assignee: |
David Austin Roses Ltd.
(Albrighton, GB)
|
Family
ID: |
74851513 |
Appl.
No.: |
16/602,857 |
Filed: |
December 12, 2019 |
Current U.S.
Class: |
PLT/104 |
Current CPC
Class: |
A01H
5/02 (20130101); A01H 6/749 (20180501) |
Current International
Class: |
A01H
5/02 (20180101); A01H 6/74 (20180101) |
Field of
Search: |
;PLT/104,106,102 |
Other References
https://www.parfumflowercompany.com/2019/06/25/three-new-david-austin-wedd-
ing-roses-for-2019/; Jun. 25, 2019; 7 pages. cited by
examiner.
|
Primary Examiner: Bell; Kent L
Attorney, Agent or Firm: KPPB LLP
Claims
What is claimed is:
1. A new and distinct variety of rose plant of the shrub class,
substantially as herein shown and described.
Description
Classification: The present invention relates to a new Rosa hybrida
shrub of the market class `English Rose`.
Variety denomination: The new plant has the varietal denomination
`AUSgray`.
ORIGIN OF INVENTION
This invention relates to a new and distinct variety of shrub rose
plant named `AUSgray`, which was originated from the
cross-pollination of the two `unnamed` and unpatented seedlings of
Rosa hybrida.
BACKGROUND OF THE INVENTION
The primary objective of this breeding was to produce a cut-flower
rose variety having yellow/apricot colored, double blooms in a
cupped form with good vase life and a fresh tea fragrance.
SUMMARY OF THE INVENTION
Among the features which distinguish the new variety from others
presently available and commercial rose cultivars known to the
inventor is the following combination of characteristics: an
apricot/yellow color rose having a many petalled, double bloom with
strong stems and a tea fragrance.
Asexual reproduction of the new variety by budding as performed in
Albrighton, Britain shows that the foregoing and other
distinguishing characteristics come true to form and are
established and transmitted through succeeding asexual
propagations. `AUSgray` may be asexually propagated by budding. The
budding successfully occurred on an unpatented plant/rootstock Rosa
inermis for the observed plants.
COMPARISON WITH PARENTS
The maternal and paternal parents of `AUSgray` are two unnamed
seedlings. The new rose may be distinguished from its seed parent,
by the following combination of characteristics: the seed parent
has a yellow rosette flower with sprawling growth compared to the
apricot/yellow color flower with more upright growth habit of
`AUSgray`. The new rose may be distinguished from its pollen
parent, by the following combination of characteristics: the pollen
parent has a bloom with a deep pink color and deeply cupped flowers
compared to the apricot/yellow color cupped blooms which open to a
rosette formation of `AUSgray`.
COMPARISON WITH THE CLOSEST COMMERCIALLY AVAILABLE CULTIVAR
The closest commercially available cultivar to the new variety is
`AUSlevity` (U.S. Plant Pat. No. 26,365). The bloom of `AUSlevity`
is a different shade of yellow (RHS 9C (yellow group) when compared
to `AUSgray` (RHS 11A). Also `AUSgray` has 123 petals per bloom,
compared to 83 petals for `AUSlevity`. The fragrance type for
`AUSlevity` is Fruity, whereas for `AUSgray` it is Tea. The mature
prickle color between both varieties is also different--RHS N144A
(yellow green group) with RHS 60D (red group) for `AUSgray`,
compared to RHS 199D (grey brown group) for `AUSlevity`.
BRIEF DESCRIPTION OF ILLUSTRATION
The accompanying photograph illustrates the new variety and shows
the flowering thereof from bud to full bloom of 5 year-old rose
plants depicted in color as nearly correct as it is possible to
make in a color illustration of the character. Throughout this
specification, color references and/or values are based upon the
Colour Chart of The Royal Horticultural Society (2001) except where
common terms of color definition are employed.
DESCRIPTION OF THE NEW VARIETY
Observations of budded `AUSgray` specimens were made at a nursery
in Albrighton, Wolverhampton, United Kingdom. The following
description is of 5 year-old rose plants of the new variety grown
in a greenhouse environment in Albrighton, Britain in the month of
June. Phenotypic expression may vary with environmental, cultural
and climatic conditions, as well as differences in conditions of
light and soil.
FLOWER CHARACTERISTICS
Blooming habit: Continuous. The number of blooms per plant during
the growing season is profuse, but there are too many to count.
Bud: Size.--About 3.2 cm long and 2.8 cm in diameter when the
petals start to unfurl. Form.--The bud form is pointed ovoid.
Color.--When sepals first divide, the bud color is RHS 21C
(yellow-orange group). When half blown, the upper sides of the
petals are RHS 22C (yellow-orange group), and the lower sides of
the petals RHS 22C (yellow-orange group). Calyx.--Shape: star
shape, with the sepals folding back against the stems. Length: 9
cm. Diameter: 9 cm. Sepals.--Arrangement: Regularly arranged.
Color: Upper Surface: RHS 191B (grayed-green group). Lower Surface:
RHS 143C (green group). Length: 4.1 cm. Width: 0.9 cm. Shape:
Lanceolate. Surface texture: Upper Surface: Smooth-slightly hairy.
Lower Surface: Smooth. Number: There are 3 lightly appendaged
sepals, and 2 unappendaged sepals with hairy edges at the margin
which show some evidence of serrations towards the apex/tip. Sepal
Extensions: Weak. Receptacles.--Color: RHS 143B (green group).
Shape: Pear. Size: Medium, about 1.2 cm long.times.1.3 cm wide.
Surface: Hairy. Peduncle.--Length: Short, averaging about 8 cm.
Diameter: Generally 0.4 cm. Surface: Prickly. Color: RHS 146C
(yellow-green group). Strength: Strong. Blooms: Size.--Large,
average open diameter is about 9.75 cm. Depth.--From 4.0 to 4.5 cm.
Borne.--Singly having a rounded shape. Stems.--Strength: Strong,
average length is about 90 cm. Diameter: 6 mm. Texture: smooth.
Color: Old wood: RHS 144A (yellow-green group). New Wood: RHS 144A
(yellow-green) with some RHS 60A (red group). Form.--When first
open, bloom is cupped. Permanence of bloom: outer petals curl back.
Flower type.--Double. Flowering season.--Flower was produced in
greenhouse conditions for cut rose production. Natural flowering
seasons were not observed. Petalage: Number of petals under normal
conditions: 123. Color.--The upper sides of the petals are RHS 11A
(yellow group). The reverse sides of the petals are RHS 11A (yellow
group). The base of the petals has a yellow shade basal spot RHS 5A
(yellow group) on both inner and outer side. Variegations.--None.
Discoloration.--The general tonality at the end of the first day is
RHS 21C (yellow group), and at the end of the third day is RHS 13C
(yellow group). Fragrance.--Slight. Character of fragrance: Tea.
Petals: Texture.--Upper & Lower Surfaces: Velvety.
Size.--Width: 3.5 cm. Length: 4.5 cm. Surface.--Smooth.
Shape.--Oval. Margin.--Very few notches/undulations present. Very
little reflexing present, with very slight signs of incisions where
apparent. Apex shape.--Rounded. Base shape.--Acute. Form.--Tips
slightly recurved. Arrangement.--Informal. Petaloids.--Number: 2-5.
Color: RHS 12A (yellow group). Length: 1.4 cm. Width: 0.7 cm.
Shape: Oval. Margin: Irregular. Persistence.--Petals hang on and
dry. Lastingness.--On the plant: about 11 days. As a cut flower:
about 12 days. Reproductive parts: Stamens.--Number: approximately
10. Length: 8 mm. Anthers.--Length: 2 mm. Color: RHS 9A (yellow
group). Arrangement: Mixed with petaloids. Filaments.--Color: RHS
17C (yellow group). Length: 4 mm. Pollen.--Color: RHS 21A (yellow
group). Amount: Scarce. Pistils.--Number: Approximately 65. Length:
10 mm. Styles.--Color: Mostly RHS 3D (yellow group). Length: 7 mm.
Stigmas.--Color: RHS 12B (yellow group). Length: 3 mm. Hips.--NONE
Observed.
PLANT CHARACTERISTICS
Plant form: Shrub. Plant growth: Vigorous. Age to maturity: 2
years. Mature plant: Height: 90 cm. Width: 65 cm. Rootstock: Rosa
inermis for the observed plants. Foliage: Number.--Leaflets on
normal mid-stem leaves is: 3 or 5 (including terminal leaflet).
Size.--Large, about 16 cm long.times.13.5 cm wide.
Quantity.--Abundant. Number of leaves per flowering stem is:
approx. 8. Color.--New foliage: Upper side: RHS 59A (red group).
Lower side: 59A (red group). Old foliage: Upper side: RHS 139A
(green group). Lower side: RHS 137D (green group). Leaflets:
Size.--About 7 cm long.times.4 cm wide. Shape.--Elliptic. Base
shape.--Rounded. Apex shape.--Acute. Texture.--Upper & Lower
Surfaces: Leathery. Glossiness.--Upper Surface: Medium. Lower
Surface: Matte. Edge.--Serrated. Serrations.--Single.
Petiole.--Color: RHS 146C (yellow-green group). Length: 4.5 cm.
Width: 0.2 cm. Surface Texture: Glandular. Petiole rachis.--Length:
1.5 cm. Diameter: 0.1 cm. Color: RHS 146C (yellow-green group).
Upper side: smooth with raised edges having a slightly glandular
finish. Underside: with prickles. Stipules.--Length: 1 cm,
glandular. Shape: Lanceolate. Apex: acuminate with a broader base
of about 0.2 cm narrowing to 0.1 cm. Color: RHS 146C (yellow-green
group). Auricle.--Shape: Lanceolate. Length: 2 cm. Width: 1.5 mm.
Color: RHS 146C (yellow-green group). Vein color.--Same as leaflet
RHS 139A (green group). Venation pattern.--Reticulate with the
lower and upper side patterns matching. Wood: New wood.--Color: RHS
143B (green group). Bark: Smooth. Old wood.--Color: RHS 144B (green
group). Bark: Smooth. Branching habit: Not observed. Stems: Mature
stem.--Length: 90 cm. Diameter: 0.6 cm. Internode distance.--11 cm.
The above measurements are all variable, depending on growing
conditions in a season. Stem pubescence present.--No. Prickles:
Quantity.--On main canes from base: Ordinary. Number per stem
length: 5-6 per 10 cm. Form.--Deep concave. Length.--8 mm. Color
when young.--RHS N144A (green group) with tinge of RHS 60D
(red-purple group). Color when mature.--RHS N144A (green group)
with stronger presence of RHS 60D (red-purple group). Small
prickles: Quantity.--Main stalk: Few on top third of plant only.
Number per stem length 1-2 per 20 cm. Color.--When young: RHS N144A
(green group) with tinge of RHS 60D (red-purple group). When
mature: RHS N144A (green group) with stronger presence of RHS 60D
(red-purple group). Disease resistance: Powdery mildew (podosphaera
pannosa).--Resistant. Downy mildew (peronospora
species).--Resistant. Blackspot (diplocarpon rosae).--N/A -- not
prevalent in greenhouse conditions. Rust (phragmidium
tuberculatum).--N/A -- not prevalent in greenhouse conditions. Pest
resistance: Not tested. Winter hardiness: Not tested. Growing
conditions: Normal greenhouse conditions.
* * * * *
References