Leptospermum laevigatum, commonly known as the Coastal Tea Tree is a woody shrub or small tree of the myrtaceae family native to eastern Australia. Salt-resistant and very hardy, it is commonly used in amenities plantings and coastal plantings. It has also been used in Western Australia where it has become a weed.[1] This species is also planted along the Central Coast of California in the United States to stabilize sand.[2] It is known there as the Australian Tea Tree.[3]

 
(From Wikipedia on 3.1.15)

 

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Leptospermum laevigatum (Gaertn.) F. Muell.
Australian myrtle, Australian teatree
Large shrub or tree with often twisted trunk; leaves broadly oblanceolate, 20-25 mm long, mucronulate, leathery; flowers white, 16-20 mm across, solitary axillary; capsule 8-10-valved.
Photographed from SFO Zoo, California


 
 

References:

The Plant List Ver.1.1
 WCSP  Wikipedia