Dypsis Decaryi GROWING AT 45 ANGLE

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I have four tri angle palms "Dypsis decaryi " in san diego. all of the which look completly healthy except 1 of the four has just started to trunk and growing at a 45 degree angle to the ground the coloring and everything looks healthy just growing at a 45 angle! has anyone ever had this proplem or know what might be causing it? other 3 are still going straight up and down.

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Tri angle growing at 45* angle

[sugarweed]

Doesn't look like a Teddy Bear Palm? or is that a Triangle Palm?

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Tri-angle palm