Inhoud
betulifolia
Campanula betulifolia
C. Koch.
Nomenclatuur
synonym Campanula finitima1)
Campanula thyrsoides x Campanula betulifolia = ? more yellow color Campanula betulifolia = Campanula betulaefolia K.Koch = Campanula denticulata Boiss. & Huet 2)
Names
E.: birch-leaved bellflower
Habitus
Tufted, glabrous or pubescent perennial, stems thin, erect to decumbent, to 8 in. long.
Graham Nicholls - Note: Campanula seraglio, this species is fairly new to cultivation and is in the same group as Campanula betulifolia, Campanula troegerae, Campanula choruhensis etc.
Campanula troegerae Damboldt, sp. nov. [sect. Symphyandriformes (Fomin) Charadze]. Known to me only from the type gathering, this beautiful new Campanula is closely allied to Campanula betulifolia C.Koch (incl. Campanula finitima Fomin) from NE Anatolia. 3)Related Species are Campanula thyrsoides (yellow bellflower, Canarina canariensis (Canary bell-flower) and Codonopsis tangshen (bellflower)
Plant with low (10-15 cm) erect stems. The leaves are dark green, almost smooth, glossy. Flowers are among the items with 1-4 pubescent tips. It flowers in May and June with white or slightly pinkish flowers. 4)Leaves
Leaves long-petioled in lower part, nearly sessile above, thickish, ovate, to 1 ½ in. long, laciniate-serrate, glossy.
The leaves are dark green, almost smooth, glossy. 5)Flowers
Flower measuring, between 25 - 40mm (1 - 1 1/2 inch.)6)
Flowers long-pedicelled, erect, to 12 on a stem, calyx with lanceolate appendages, corolla white od blue, flushed with pink outside, 1-1 ½ in. long, campanulate.
The genus Symphyandra is very closely related to Campanula and differs only in the anthers being connate in a tube. Even this difference breaks down, since in Campanula sect. Symphyandriformes there are some species, such as Campanula betulifolia and Campanula ossetica, where the anthers are partly connate in younger flowers. Also in Campanula flaccidula (sect. Rapunculus) the anthers are partly connate during anthesis (observation from herbarium material only). The preservation of Symphyandra as a genus seems to result from conservative tradition, and subgeneric rank may be more appropriate.7) Flowers are among the items with 1-4 pubescent tips. Corolla narrowly campanulate, up to 3 cm. It flowers in May and June with white or slightly pinkish flowers.8)
Fruit
Seed available, in small quantity. Species actually grown or used for breeding 9) Campanula betulifolia C.Koch. (470-82). De: Denver Botanic Gardens, Denver, Colorado, USA. Descr.: sem. 18-2-82. Couche fr. 9, s-34, 1 t.s. 19-10-82 10)
Varieties
- Campanula betulafolia var. exappendiculata
Breeding
MATERIALS NEEDED
When breeding within a genus, the collection of all its species will help, since a few of them may carry a specific gene. In breeding for yellow color, why not try Campanula makashvillii, Campanula sulphurea, Campanula ereophilum, Campanula vidalii, Campanula thyrsoides, or Campanula betulifolia? Out of the 300 species available, we begin with the 180 we believe most suitable.11)Living
Homeland - the mountains of Turkey, where it grows at an altitude of 300-2300 m.12)
Use
Necessary soil pH 5,6-7,5. The location should be sunny, dry, well-drained. Protection against moisture in the winter is desirable. Use: alpine slides.13)
Origin
Armenia.
North-east Turkey. Homeland - the mountains of Turkey, where it grows at an altitude of 300-2300 m.14)