Details for: 12E0100376, Rhododendron catawbiense Michx., 'Mrs R. S. Holford'

Summary Data

Taxonomy:

Rhododendron catawbiense Michx.

Cultivar:

'Mrs R. S. Holford'

Origin:

Origin – United Kingdom

Maintained:

The Silva Tarouca Research Institute for Landscape and Ornamental Gardening

Received by CRI:

1968

Improvement Status:

Advanced/improved cultivar

Life form:

Perennial

Growth class:

flowers: perennial vegetatively propagated

Is Core:

Form Received:

Field collection

Availability

Form	Quantity	Note	Inventory	Cart
Cutting	2 cuttings		12E0100376

Note: When you select cuttings, you will receive unrooted cuttings, not rooted plants, unless specific arrangements have been made with the curator.
curator must confirm the availability

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Core Passport Data

Taxonomy:

Rhododendron catawbiense Michx.

Cultivar:

'Mrs R. S. Holford'

Origin:

Origin – United Kingdom

Maintained:

The Silva Tarouca Research Institute for Landscape and Ornamental Gardening

Received by CRI:

1968

Improvement Status:

Advanced/improved cultivar

Life form:

Perennial

Growth class:

flowers: perennial vegetatively propagated

Is Core:

Form Received:

Field collection

Source History

Accession Group(s)

Group name: Pěnišník, růže sadové
Note: Rhododendron, Rosa
To search for accessions in this group, click the following link. Pěnišník, růže sadové

Accession Names and Identifiers

'Mrs R. S. Holford'

Type: Cultivar name

Mrs Holford

Type: Duplicate accession name

Rhododendron catawbiense hybr. group

Type: Full taxon

Narrative

Curator: Lenka Kašparová, The Silva Tarouca Research Institute for Landscape and Ornamental Gardening (CZE079) Lenka.Kasparova@vukoz.cz

Rhododendron catawbiense Michx.

Genus:

Rhododendron

Subgenus:

Hymenanthes

Section:

Ponticum

Family:

Ericaceae

Subfamily:

Ericoideae

Tribe:

Rhodoreae

Nomen number:

5025

Place of publication:

Fl. bor.-amer. 1:258. 1803

Verified:

June 06, 1995 by ARS Systematic Botanists.

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Common names

LANGUAGE	NAME	SEQ	CITATION
English	catawba rhododendron	1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
English	mountain rose bay	1	Luteyn, J. L. et al. 1996. Ericaceae of the southeastern United States. Castanea 61:119.
English	purple-laurel	1	Luteyn, J. L. et al. 1996. Ericaceae of the southeastern United States. Castanea 61:119.
Swedish	catawba-rododendron	2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study
BIOLOGY	119 Susceptibility to Exobasidium rhododenri and E. japonicum	Without inoculation in monoculture	0 - infection not found	2010 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	001 Plant - persistence of leaves	001 Plant - persistence of leaves	3 - evergreen	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	010 Young leaf - pubescence on the upper side	Young leaves are observed as soon as they have reached full size	0 - hairless	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	011 Young leaf - pubescence on the lower side	Young leaves are observed as soon as they have reached full size	0 - hairless	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	012 Mature leaf - blade shape	Fig. 2 / Matured leaves are observed at the time of end of growth	3 - elliptic	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	013 Mature leaf - blade length	Matured leaves are observed at the time of end of growth	5 - intermediate 6,1-10 (cm)	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	023 Inflorescence - attitude on the shoot	Fig. 3	1 - terminal	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	028 Flower - funnel-shaped	Fig. 6	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	035 Flower - number of corolla lobes	035 Flower - number of corolla lobes	3 - low 5	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	036 Flower - type of the flower	Fig. 8	1 - single	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	038 Flower - colour of corolla edges in comparison with flower colour	038 Flower - colour of corolla edges in comparison with flower colour	7 - darker	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	045 Flower - yellow orange colour on inner side	045 Flower - yellow orange colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	046 Flower - orange colour on inner side	046 Flower - orange colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	048 Flower - orange red colour on inner side	048 Flower - orange red colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	049 Flower - red colour on inner side (light to medium deep tones)	049 Flower - red colour on inner side (light to medium deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	050 Flower - red colour on inner side (medium deep tones)	050 Flower - red colour on inner side (medium deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	057 Flower - violet colour on inner side	057 Flower - violet colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	058 Flower - violet blue colour on inner side	058 Flower - violet blue colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	060 Flower - blue colour on inner side	060 Flower - blue colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	063 Flower - deepness of colour on inner side	063 Flower - deepness of colour on inner side	3 - light R.H.S. - C	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	064 Flower - supplemental colour on inner side	064 Flower - supplemental colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	070 Flower - orange colour on outer side	070 Flower - orange colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	072 Flower - orange red colour on outer side	072 Flower - orange red colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	073 Flower - red colour on outer side (light to medium deep tones)	073 Flower - red colour on outer side (light to medium deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	074 Flower - red colour on outer side (medium deep tones)	074 Flower - red colour on outer side (medium deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	075 Flower - red colour on outer side (deep tones)	075 Flower - red colour on outer side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	082 Flower - violet blue colour on outer side	082 Flower - violet blue colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	084 Flower - blue color on outer side	084 Flower - blue color on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	087 Flower - deepness of colour on outer side	087 Flower - deepness of colour on outer side	3 - light R.H.S. - C	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	088 Flower - supplemental colour on outer side	088 Flower - supplemental colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	089 Flower - arrangement of supplemental colour on outer side	089 Flower - arrangement of supplemental colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	099 The ratio pistil : stamens length	099 The ratio pistil : stamens length	6 - pistil longer	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	100 Pistil - stigma colour	100 Pistil - stigma colour	4 - red	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	101 Pistil - uniformity of style colour	101 Pistil - uniformity of style colour	1 - unified	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	102 Pistil - unifed colour of style	102 Pistil - unifed colour of style	4 - pink	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	103 Pistil - double colour of style	103 Pistil - double colour of style	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	109 Flower - time of beginning of flowering	Comparative varieties: 2. ‘Bouzov’, 3. ‘Alena’, 4. ‘Motýl’, 5. ‘Catawbiense Grandiflorum’, 7 ‘James Burchett’. Specific values (time period) valid for central Bohemian mesophyticum (Průhonice).	5 - medium 16.5.-30.6.	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	111 Flower - fragrance	111 Flower - fragrance	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	051 Flower - red colour on inner side (deep tones)	051 Flower - red colour on inner side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	052 Flower - red purple colour on inner side (light tones)	052 Flower - red purple colour on inner side (light tones)	2 - moderate / strong purplish red, deep purplish pink R.H.S. 58	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	054 Flower - red purple colour on inner side (deep tones)	054 Flower - red purple colour on inner side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	055 Flower - purple colour on inner side	055 Flower - purple colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	056 Flower - purple violet colour on inner side	056 Flower - purple violet colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	065 Flower - arrangement of supplemental colour on inner side	065 Flower - arrangement of supplemental colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	066 Flower - white colour on outer side	066 Flower - white colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	067 Flower - yellow colour on outer side (light tones)	067 Flower - yellow colour on outer side (light tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	068 Flower - yellow colour on outer side (deep tones)	068 Flower - yellow colour on outer side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	069 Flower - yellow orange colour on outer side	069 Flower - yellow orange colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	076 Flower - red purple colour on outer side (light tones)	076 Flower - red purple colour on outer side (light tones)	2 - moderate / strong purplish red, deep purplish pink R.H.S. 58	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	078 Flower - red purple colour on outer side (deep tones)	078 Flower - red purple colour on outer side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	079 Flower - purple colour on outer side	079 Flower - purple colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	080 Flower - purple violet colour on outer side	080 Flower - purple violet colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	081 Flower - violet colour on outer side	081 Flower - violet colour on outer side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	090 Flower - presence of design	090 Flower - presence of design	1 - present	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	092 Flower - distinctness of design	092 Flower - distinctness of design	3 - weak	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	093 Flower - location of design	Fig. 9	1 - upper middle lobe	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	094 Flower - type of design	Fig. 10	1 - dot-like	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	104 Stamens - number	104 Stamens - number	5 - intermediate constant 10	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	105 Stamens - colour of ripe anthers	105 Stamens - colour of ripe anthers	8 - light brown	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	106 Stamens - colour of filaments	106 Stamens - colour of filaments	2 - different in lower and upper parts	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	107 Stamens - colour of filaments unified	107 Stamens - colour of filaments unified	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	108 Stamens - double colour of filaments	108 Stamens - double colour of filaments	7 - pink, up white	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	005 Shoot - colour in the upper part	Sprouting shoot	3 - light green	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	006 Shoot - indumentum	Sprouting shoot	5 - medium dense hairs	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	007 Young leaf - colour of upper side	Young leaves are observed as soon as they have reached full size	3 - medium green	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	008 Young leaf - colour of lower side	Young leaves are observed as soon as they have reached full size	2 - light green	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	015 Mature leaf - petiole length	Matured leaves are observed at the time of end of growth	5 - intermediate 1,5- 3 (cm)	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	018 Mature leaf - indumentum on the lower side	Matured leaves are observed at the time of end of growth	0 - hairless	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	019 Mature leaf - colour of upper side	Matured leaves are observed at the time of end of growth	4 - dark green	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	021 Mature leaf - colour of lower side	Matured leaves are observed at the time of end of growth	0 - grey green	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	029 Flower - campanulate shape	Fig. 7	8 - bowl-shaped	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	030 Flower - diameter	Maximal value at open flower	5 - intermediate 4,1 - 7 (cm)	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	031 Flower - length of peduncle	031 Flower - length of peduncle	5 - intermediate 2,5 - 4 (cm)	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	032 Flower - presence of calyx	032 Flower - presence of calyx	1 - present	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	033 Flower - length of the longest sepal	033 Flower - length of the longest sepal	5 - medium 2 - 4 (mm)	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	040 Flower - incision of corolla margin	040 Flower - incision of corolla margin	7 - deep > 1/2	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	041 Flower - inner colour of base in comparison with flower colour	041 Flower - inner colour of base in comparison with flower colour	5 - the same	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	042 Flower - white colour on inner side	042 Flower - white colour on inner side	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	043 Flower - yellow colour on inner side (light tones)	043 Flower - yellow colour on inner side (light tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	044 Flower - yellow colour on inner side (deep tones)	044 Flower - yellow colour on inner side (deep tones)	0 - absent	2009 Research Institute of Ornamental Gardening Pruhonice
MORPHOLOGY	097 Flower - colour of design (dark colours)	Type variety ‘Humboldt’. Colour observation 1 – 2 days after full bloom of the flower.	4 - purple brown	2009 Research Institute of Ornamental Gardening Pruhonice
PHYSIOLOGY	122 Reproducibility - cutting	122 Reproducibility - cutting	7 - well rooted 60-79%	2009 Research Institute of Ornamental Gardening Pruhonice