新華盛頓椰子Washingtonia filibusta

興大路

樹圍: 為了證實他的品種，我走到安全島中央，拿了布尺量樹圍，約200公分....應該是"新"華盛頓椰子(混交種 hybrid)
參考下面文字

The “filabusta,” more commonly just called the Hybrid is a cross between the Washingtoni filifera and the Washingtonia robusta.  It retains all the good qualities of both, including giving greater mass for plantings closer to the coast.   Because it its hybrid origins, this palm is primarily identified morphologically, and its identifying characteristics are intermediate between the filifera and the robust, particularly in the thickness of its trunk and its height.  The Hybrid is more massive than the robusta but taller than the filifera.  When sourcing Hybrids, we advise landscape architects and contractors to avoid using plants from different growers.  Plants sourced from different nurseries tend to hybridize in different ways and may not have uniform growth habits, even if they appear to be the same size when planted.  Ellis Farms Hybrids have been hybridizing in the same fields for 35 years.  Our stable gene-pool tends to produce palms that remain more uniform as they grown, often an asset to street plantings and other designs in which symmetry and consistency matter.

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from wiki:

Washingtonia filifera (common name desert fan palm)^[1] is a species of flowering plant in the palm family Arecaceae, native to southwestern North America. Growing to 15–20 m (49–66 ft) tall by 3–6 m (10–20 ft) broad, it is an evergreen tree with a sturdy columnar trunk and fan-shaped leaves.

from: http://californiafanpalms.com/

 California Fan Palms - Washingtonia filifera

 Stately and distinctive, the California fan palm is one of the most widely grown palms in subtropical climates. California fan palm can grow 60 ft (18.3 m) tall with a crown spread of 15 ft (4.6 m). The massive gray trunk is barrel shaped and ringed with old leaf scars, and may reach over 3 ft (0.9 m) in diameter at its widest point. California fan palm can have up to thirty gray-green palmate (fan-shaped) leaves, each 3-6 ft (0.9-1.8 m) across. They spread out to form a loose and open crown. The petioles (leaf stems) of mature palms are armed along the margins with curved thorns; those of young palms are largely unarmed. The individual leaflets are pendulous and swing freely in the wind.