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Bangalow palms


philinsydney

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On the UK Oasis site there is an interesting idea about why A. cunninghamiana grows on the cool mountaintops above 3000 feet with the Antarctic beeches (or at least, young ones do)

See the thread marked Nothofagus moorei in UK?

http://www.ukoasis.co.uk/viewtopic.php?t=3538

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

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Archontophoenix dispersal by birds into Nothofagus habitat (followed by periodic mass mortalities due to cold) is quite possible.  That sort of thing probably happens here, as migrating birds scarf fruit at one spot, dropping the seeds somewhere else.  

We most certainly have a pattern of colonizing tropicals spreading north during warm periods, only to be slaughtered by the occasional outbreak of freezing air direct from Alberta.  As a result of this sort of thing, the same spot may be salt marsh or mangrove, depending on the time-since-freeze.

Another possibility is that the bangalows usually get big enough to reproduce, so there's seed at sheltered non-freezing spots on the ground.

But if these bangalows constitute a permanent population (not obvious from the photos),  they raise all sorts of interesting possibilities for people in maritime climates with occasional freezes.

Fla. climate center: 100-119 days>85 F
USDA 1990 hardiness zone 9B
Current USDA hardiness zone 10a
4 km inland from Indian River; 27º N (equivalent to Brisbane)

Central Orlando's urban heat island may be warmer than us

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  • 2 weeks later...

This is interesting to say the least.  Thanks for the link Phil.

Tampa, Interbay Peninsula, Florida, USA

subtropical USDA Zone 10A

Bokeelia, Pine Island, Florida, USA

subtropical USDA Zone 10B

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