Details for: 12E0100608, Rhododendron obtusum (Lindl.) Planch., 'Oslava'

Summary Data

Taxonomy:

Rhododendron obtusum (Lindl.) Planch.

Cultivar:

'Oslava'

Origin:

Origin – Czechoslovakia

Maintained:

The Silva Tarouca Research Institute for Landscape and Ornamental Gardening

Received by CRI:

1988

Improvement Status:

Advanced/improved cultivar

Life form:

Shrub

Growth class:

flowers: perennial vegetatively propagated

Is Core:

Form Received:

Field collection

Availability

The item(s) is/are currently not available; request when available, as shown:
Cutting: June 01 - July 31

curator must confirm the availability

There are no images for this accession.

Core Passport Data

Taxonomy:

Rhododendron obtusum (Lindl.) Planch.

Cultivar:

'Oslava'

Origin:

Origin – Czechoslovakia

Maintained:

The Silva Tarouca Research Institute for Landscape and Ornamental Gardening

Received by CRI:

1988

Improvement Status:

Advanced/improved cultivar

Life form:

Shrub

Growth class:

flowers: perennial vegetatively propagated

Is Core:

Form Received:

Field collection

Source History

Developed

1969. Czech Republic

Developer(s):

Jelínek, Jan, Výzkumný ústav okrasného zahradnictví

Donated

Czech Republic

Donator(s):

CZE079, The Silva Tarouca Research Institute for Landscape and Ornamental Gardening

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

'Oslava'

Type: Cultivar name

Rhododendron obtusum

Type: Full taxon

Narrative

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

Rhododendron obtusum (Lindl.) Planch.

Genus:

Rhododendron

Subgenus:

Azaleastrum

Section:

Tsutsusi

Family:

Ericaceae

Subfamily:

Ericoideae

Tribe:

Rhodoreae

Nomen number:

31485

Place of publication:

Fl. Serres Jard. Eur. 9:80. 1854

Verified:

April 15, 1996 by ARS Systematic Botanists.

Other conspecific taxa

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

Basionym
Azalea obtusa Lindl.

Autonym(s)
Rhododendron obtusum (Lindl.) Planch. f. obtusum
Rhododendron obtusum (Lindl.) Planch. var. obtusum

Heterotypic Synonym(s)
Azalea amoena Lindl. & Paxton
Rhododendron austrokiusianum Hatus.
Rhododendron obtusum (Lindl.) Planch. f. amoenum (Lindl.) E. H. Wilson
Rhododendron sataense Nakai

Common names

LANGUAGE	NAME	ALTERNATE NAME	NOTE	SEQ	CITATION
Japanese Rōmaji	kirishima-tsutsuji			2	Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Japanese Rōmaji	kurume-tsutsuji			2	Ohwi, J. 1965. Flora of Japan (Engl. ed.).

Annotations

Re-Identification: 15 Feb 2019, from Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai to Rhododendron obtusum (Lindl.) Planch.

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Availability
BIOLOGY	112 Winter frost damage - leaves	Fig. 11	1 - very low, damaged on tips or margins	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
BIOLOGY	113 Winter frost damage - flower buds	113 Winter frost damage - flower buds	1 - very low, some buds opened or were deformed	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
BIOLOGY	118 Susceptibility to feeding Otiorrhynchus sp.	Without inoculation in monoculture	3 - low	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	001 Plant - persistence of leaves	001 Plant - persistence of leaves	2 - semi-deciduous	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	002 Plant - density of branches and foliage	002 Plant - density of branches and foliage	7 - compact	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	003 Plant - habit	Fig. 1	5 - rounded to spreading 1,2 – 0,6	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	009 Young leaf - waxy bloom on the upper side	Young leaves are observed as soon as they have reached full size	0 - absent	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	010 Young leaf - pubescence on the upper side	Young leaves are observed as soon as they have reached full size	5 - medium dense hairs	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	011 Young leaf - pubescence on the lower side	Young leaves are observed as soon as they have reached full size	3 - sparse hairs	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	012 Mature leaf - blade shape	Fig. 2 / Matured leaves are observed at the time of end of growth	2 - oblong	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	013 Mature leaf - blade length	Matured leaves are observed at the time of end of growth	3 - short 2,1- 4 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	023 Inflorescence - attitude on the shoot	Fig. 3	1 - terminal	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	024 Inflorescence - number of flowers	024 Inflorescence - number of flowers	3 - low 3 - 5	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	026 Flower - shape of flower bud	Fig. 5	3 - ovate sharpened	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	028 Flower - funnel-shaped	Fig. 6	2 - widely funnel-shaped	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	035 Flower - number of corolla lobes	035 Flower - number of corolla lobes	3 - low 5	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	036 Flower - type of the flower	Fig. 8	1 - single	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	037 Flower - corolla undulation of margins	037 Flower - corolla undulation of margins	0 - absent	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	038 Flower - colour of corolla edges in comparison with flower colour	038 Flower - colour of corolla edges in comparison with flower colour	5 - the same	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	039 Flower - colour stability (comparison old and young flower)	039 Flower - colour stability (comparison old and young flower)	3 - lighter	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	045 Flower - yellow orange colour on inner side	045 Flower - yellow orange colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	046 Flower - orange colour on inner side	046 Flower - orange colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	048 Flower - orange red colour on inner side	048 Flower - orange red colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
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	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	050 Flower - red colour on inner side (medium deep tones)	050 Flower - red colour on inner side (medium deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	057 Flower - violet colour on inner side	057 Flower - violet colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	058 Flower - violet blue colour on inner side	058 Flower - violet blue colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	060 Flower - blue colour on inner side	060 Flower - blue colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	063 Flower - deepness of colour on inner side	063 Flower - deepness of colour on inner side	5 - medium deep R.H.S. - B	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	064 Flower - supplemental colour on inner side	064 Flower - supplemental colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	070 Flower - orange colour on outer side	070 Flower - orange colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	072 Flower - orange red colour on outer side	072 Flower - orange red colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
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	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	074 Flower - red colour on outer side (medium deep tones)	074 Flower - red colour on outer side (medium deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	075 Flower - red colour on outer side (deep tones)	075 Flower - red colour on outer side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	082 Flower - violet blue colour on outer side	082 Flower - violet blue colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	084 Flower - blue color on outer side	084 Flower - blue color on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	087 Flower - deepness of colour on outer side	087 Flower - deepness of colour on outer side	5 - medium deep R.H.S. - B	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	088 Flower - supplemental colour on outer side	088 Flower - supplemental colour on outer side	6 - red	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	089 Flower - arrangement of supplemental colour on outer side	089 Flower - arrangement of supplemental colour on outer side	6 - throat	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	099 The ratio pistil : stamens length	099 The ratio pistil : stamens length	6 - pistil longer	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	100 Pistil - stigma colour	100 Pistil - stigma colour	3 - green	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	101 Pistil - uniformity of style colour	101 Pistil - uniformity of style colour	2 - different in lower and upper parts	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	103 Pistil - double colour of style	103 Pistil - double colour of style	7 - pink, up white	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
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.	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	111 Flower - fragrance	111 Flower - fragrance	0 - absent	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	051 Flower - red colour on inner side (deep tones)	051 Flower - red colour on inner side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	052 Flower - red purple colour on inner side (light tones)	052 Flower - red purple colour on inner side (light tones)	7 - deep / strong / moderate / light purplish pink R.H.S. 68	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	054 Flower - red purple colour on inner side (deep tones)	054 Flower - red purple colour on inner side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	055 Flower - purple colour on inner side	055 Flower - purple colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	056 Flower - purple violet colour on inner side	056 Flower - purple violet colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	065 Flower - arrangement of supplemental colour on inner side	065 Flower - arrangement of supplemental colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	066 Flower - white colour on outer side	066 Flower - white colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	067 Flower - yellow colour on outer side (light tones)	067 Flower - yellow colour on outer side (light tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	068 Flower - yellow colour on outer side (deep tones)	068 Flower - yellow colour on outer side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	069 Flower - yellow orange colour on outer side	069 Flower - yellow orange colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	076 Flower - red purple colour on outer side (light tones)	076 Flower - red purple colour on outer side (light tones)	7 - deep / strong / moderate / light purplish pink R.H.S. 68	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	078 Flower - red purple colour on outer side (deep tones)	078 Flower - red purple colour on outer side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	079 Flower - purple colour on outer side	079 Flower - purple colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	080 Flower - purple violet colour on outer side	080 Flower - purple violet colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	081 Flower - violet colour on outer side	081 Flower - violet colour on outer side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	090 Flower - presence of design	090 Flower - presence of design	1 - present	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	092 Flower - distinctness of design	092 Flower - distinctness of design	5 - intermediate	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	093 Flower - location of design	Fig. 9	1 - upper middle lobe	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	094 Flower - type of design	Fig. 10	4 - combined	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	104 Stamens - number	104 Stamens - number	4 - low variable 3 - 10	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	105 Stamens - colour of ripe anthers	105 Stamens - colour of ripe anthers	8 - light brown	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	106 Stamens - colour of filaments	106 Stamens - colour of filaments	2 - different in lower and upper parts	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	108 Stamens - double colour of filaments	108 Stamens - double colour of filaments	2 - white, up pink	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	004 Plant - height	In 10 years of age	5 - medium 51- 90 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	005 Shoot - colour in the upper part	Sprouting shoot	7 - brown	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	006 Shoot - indumentum	Sprouting shoot	5 - medium dense hairs	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	007 Young leaf - colour of upper side	Young leaves are observed as soon as they have reached full size	2 - light green	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	008 Young leaf - colour of lower side	Young leaves are observed as soon as they have reached full size	2 - light green	2004 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	014 Mature leaf - blade width	Matured leaves are observed at the time of end of growth	3 - narrow 1,1- 1,5 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	015 Mature leaf - petiole length	Matured leaves are observed at the time of end of growth	3 - short 0,5- 1,4 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	018 Mature leaf - indumentum on the lower side	Matured leaves are observed at the time of end of growth	7 - dense hairs	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	019 Mature leaf - colour of upper side	Matured leaves are observed at the time of end of growth	7 - grey green	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	021 Mature leaf - colour of lower side	Matured leaves are observed at the time of end of growth	2 - yellow green	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	030 Flower - diameter	Maximal value at open flower	4 - small to intermediate 3,1 - 4 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	031 Flower - length of peduncle	031 Flower - length of peduncle	4 - short to intermediate 1,6 - 2,5 (cm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	032 Flower - presence of calyx	032 Flower - presence of calyx	1 - present	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	033 Flower - length of the longest sepal	033 Flower - length of the longest sepal	3 - short < 2 (mm)	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	040 Flower - incision of corolla margin	040 Flower - incision of corolla margin	5 - intermediate 1/3 - 1/2	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	041 Flower - inner colour of base in comparison with flower colour	041 Flower - inner colour of base in comparison with flower colour	3 - lighter	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	042 Flower - white colour on inner side	042 Flower - white colour on inner side	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	043 Flower - yellow colour on inner side (light tones)	043 Flower - yellow colour on inner side (light tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	044 Flower - yellow colour on inner side (deep tones)	044 Flower - yellow colour on inner side (deep tones)	0 - absent	2005 Research Institute of Ornamental Gardening Pruhonice	Out of Season
MORPHOLOGY	097 Flower - colour of design (dark colours)	Type variety ‘Humboldt’. Colour observation 1 – 2 days after full bloom of the flower.	6 - purpur	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season
PHYSIOLOGY	122 Reproducibility - cutting	122 Reproducibility - cutting	9 - very well - rooted 80-100%	2002 Research Institute of Ornamental Gardening Pruhonice	Out of Season