Christine Matton
ActiveRhododendron simsii Planch. · Indica azalea
Johan Van der Haegen, Hortibreed N.V.
Variety traits
Flower color is a stable morphological trait of a variety used to confirm its identity, purity, and uniformity. It is determined by the genetic composition of pigments and may vary under the influence of environmental factors.
Mentioned in descriptions 7 731 varieties reference book.
Flower color is a basic morphological indicator used in variety testing protocols for the identification, distinctness, uniformity, and stability of a cultivar. The manifestation of this trait serves as a marker of varietal purity: the appearance of plants with a different color in the field indicates non-uniformity or biological contamination.
The manifestation of the trait depends on the genetic composition of pigments, such as anthocyanins and carotenoids, as well as on external conditions: light intensity, temperature regime, and soil acidity. During the flower's life cycle, its color may change in a predictable manner, which is taken into account during field inspection.
The trait is assessed visually or quantitatively using specialized color charts, such as the RHS scale, to ensure the standardization of descriptions. In professional breeding, the concept of a 'high' or 'low' color value is replaced by the requirement of strict adherence to the reference description of a specific variety.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Rhododendron simsii Planch. · Indica azalea
Johan Van der Haegen, Hortibreed N.V.
Gaillardia x grandiflora hort. ex Van Houtte · Blanket flower
Lintott Keith George / Read Charles Richard
Pelargonium grandiflorum (Andrews) Willd. · Regal pelargonium
Martin Geibel c/o Elsner pac Jungpflanzen GbR
Kalanchoe Adans. · Kalanchoe
Knud Jepsen
Rosa L. · Rose
Warner Christopher Hugh
Rosa L. · Rose
DAVID JC AUSTIN
Rosa L. · Rose
David Austin Roses
Calibrachoa Cerv. · Calibrachoa
Theodorus Cornelis Maria Van Kleinwee
Chrysanthemum L. · Chrysanthemum
JAN HOEK
Buddleja L. · Buddleia
Trees Scott C
Arctotis L. · African daisy
Graham N. Brown
Rhododendron simsii Planch. · Indica azalea
Johan Van der Haegen, Hortibreed N.V.
Pelargonium peltatum (L.) L'Hér. · Ivy-leaf geranium
Winner Blair|Ventura, CA
Impatiens walleriana Hook. f. · Busy Lizzie
Uchneat Michael S.|Geneva, IL, US
Angelonia angustifolia Benth. · Angelonia
Leue Ellen|DeKalb, IL, US
Rosa L. · Rose
DAVID JC AUSTIN
Rosa L. · Rose
David J.C.Austin
Lavandula stoechas L. · French lavender
P.P.M. van der Salm Holding B.V., L. Koning Beheer B.V.
Linum usitatissimum L. · Common flax
TURNER JOHN ANTHONY
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Shouji SAKAMOTO (JP)
Calluna vulgaris (L.) Hull · Common heather
Peter de Winkel
Rosa L. · Rose
Hans-Juergen Evers
Rosa L. · Rose
EVERS CHRISTIAN
Astrantia major L. · Masterwort
Jacobus R. de Jong