Cryptogramma stelleri

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Cryptogramma stelleri (S.G.Gmel.) Prantl

Pteridaceae

Life form: perennial

Exposure: sun - Exposure: half shade - Exposure: shade   3

Moisture: moist

Arrangement: not specified
Leaves: decidious

Shape: lanceolate

Division: ternate

Shape: not specified
Fruit: not specified

 

Inflorescence: not specified

Petals: not specified
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Polypodiophyta
Subdivisio:
Polypodiophytina
Classis:
Polypodiopsida
Subclassis:
Polypodiidae
Ordo:
Parkeriales

Cryptogramma stelleri, commonly known as Fragile Rockbrake, is a perennial.

Naming

Cryptogramma stelleri was already described and the name validly published by Samuel Gottlieb Gmelin. It was Karl Anton Eugen Prantl, however, who reclassified it into todays valid botanical systematics in 1882.

Taxonomy

Cryptogramma stelleri is a species in the genus Cryptogramma which contains approximately 11 to 22 species and belongs to the family of the Pteridaceae (Brake Family).

Characteristics

Growth

The perennials reach heights of 5 to 20 centimetres.

Leaves

Cryptogramma stelleri is deciduous. The leaves are ternate. The lanceolate leaflets are petiolate.

Flowers and Fruits

Root System

Distribution

Cryptogramma stelleri is native to Alaska, Canada, the Northeast of the US, the central Northeast of the US, the Rocky Mountains, Northwest Siberia, the Himalaya and Japan.

Cultivation

The perennials prefer a sunny to shady situation on moist soil. They tolerate temperatures down to -40°C (USDA zone 3).

Uses

Maintenance and Propagation

Cultivars

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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