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Dacrydium Cupressinum or Rimu belongs to Dacrydium.




Images of Dacrydium Cupressinum or Rimu at google.com

Dacrydium Cupressinum which is also known as Rimu belongs to Dacrydium.

Overview of Dacrydium Cupressinum or Rimu

• It is a large evergreen coniferous tree.
• It is endemic to New Zealand forests.
• This plant is a member of podocarps which is in the southern conifer group.
• Rimu grows all through the New Zealand. It grows in:
– The North Island
– South Island
– Stewart Island
– Rakiura
• Largest concentration of these trees are found on West Coast of the South Island at present.
• Rimu is a slow-growing tree.
• It can grow up to a height of about 50 m.
• The large trees are 20 to 35 m tall.
• The straight trunk of the Rimu is about 1.5 m in diameter.
• The leaves are spirally arranged.
• This is awl-shaped.
• They are up to 7 mm long.
• They are 1 mm wide.
• They are 2 to 3 mm long which is on mature trees.
• It is a dioecious plant.
• There are male and female cones on separate trees.
• The seeds take 15 months in order to mature.
• The mature cones have a swollen red fleshy scale.
• It is about 6 to 10 mm long.
• These cones have apical seeds that are 4 mm long.
• These seeds are dispersed by birds.
• These birds eat the fleshy scale.
• The seed is passed on in their droppings.
• The wood is used for making furniture and house construction.
• The inner bark is used to treat burns and cuts.
• Charisma is the only cultivated variety.
• Seed produce once or twice in every 10 years.
• Germination rate is very low.
• Seed is naturally dormant for about 50 days.
• Seed falls from mid-March to the end of April.

Birds that eat rimu berries are:
– Tui
– Bellbird
– Whiteheads
– Kereru
– Blackbirds
– Starlings
– Thrushes

Scientific Classification of Dacrydium Cupressinum or Rimu

• Kingdom : Plantae
• Division : Pinophyta
• Class : Pinopsida
• Order : Pinales
• Family : Podocarpaceae
• Genus : Dacrydium
• Species : D. cupressinum
• Binomial name : Dacrydium cupressinum

Growing/Caring conditions for Dacrydium Cupressinum or Rimu

• Pollen and seeds are produced by male and female trees.
• Seeds take about 18 months to ripen.
• Each black seed sits on a red, fleshy receptacle.
• It is eaten by birds or falls to the ground.
• Heavy seed crops occur every few years.
• The plant needs Moist and good soils.
• It grows well in shade and shelter for young trees.
• Foliage can become brown in dry situation.
• It becomes ‘green’ later with moisture.
• Seed – sow late winter inside a cold frame.
• If they are sufficient to manage, prick the seedlings out.
• Plant them into individual pots.
• Grow them on within the greenhouse for around their first winter.
• Plant them out within their permanent positions at the end of spring or early summer.
• It is following last expected frosts.
• Cuttings inside a sandy soil in a cool or slightly warm border spring.





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