The Syagrus Romanzoffiana, though non-indiginous, is probably the most common palm in WA. Locally known as the Cocos palm, despite not actually belonging to the cocos genus. 

Pruning

(or cleaning) makes a huge difference to your enjoyment of this as a residential palm tree. Elsewhere it is also known as a queen palm. 

The Bangalo is a great low-maintenence palm. Usually only the seed inflorescences need to be pruned off just under the smooth green crownshaft. The bangalo can occur as a single, double or triple trunked growth.

The Triangle Palm is a great all rounder. Very tidy and decorative when pruned, it doesn't grow to a rediculous height, has no thorns or spines and no major pests or diseases. Recommended as a landscaping addition, its 3-pointed fronds compliment an area without blocking out all sunlight to other plants.

This picture shows the Canary Island Date Palm after some decorative

pruning

of both the trunk and canopy.  Although some may find it a slighty unnatural look, the trunk

pruning

does give a very clean, snakeskin effect.   The crown can be given a chunky shape as in this example or curved out.  A member of Phoenix genus, ghjthe fruit of this tree is eaten by birds and animals but not humans.  (See Phoenix Dactylifera)

The Pygmy Date Palm, or Phoenix Roebelenii, can defy its common name and grow to over 15 feet. Like the other members of the phoenix genus, it features very sharp spines at the base of the leafy fronds. The trunk retains fibrous debris from previous seasons growth, but this gradually loosens and can be carefully removed to leave a 'knobbly' but good looking trunk.

This picture claims to be a hybrid of the two Washingtonia species. It has been labelled a Washingtonia "Fil-busta". Note the persistant dead fronds on the upper third of the trunk, forming the upside down cone shape that is often seen in many big filbustas.

The Canary Island Date Palm is a magnificent tree, especially in maturity. It responds wonderfully to decorative

pruning

and can be sculpted a variety of ways. While still short many owners choose to sculpt into a pineapple shape, a practice that has led to the common name of Pineapple Palm in many parts of the world. They are a real investment in time to achieve a tall tree, and to purchase one of even a few metres tall could cost thousands of dollars. This picture shows a relatively young tree, with its ripe orange seed pods. See below for a mature specimen.

The Cotton Palm is also known as the American Cotton, Mexican Fan or Washingtonia Palm. There are two species, the Washingtonia Robusta and the Washingtonia Filfera that are often identified as the same tree. Both species feature the palmate fronds with sharp thorns along the petioles. Unpruned, the trunk will wear a coat of dead fronds from top to bottom, though in some cases (esp. filfera) the expansion of the trunk causes these to shed. Persistant old fronds can be pruned away leaving the trunk covered by a thatch effect of the petiole bases. The cotton palm can easily reach 100 feet in height.

The Pindu or Jelly Palm is an interesting looking palm to have in your garden. Despite the persistent bases of old fronds, it still achieves a tidy look when uniformly pruned. Native to Brazil and Argentina, the Pindu has oval fruit which turn red when ripe, and these have been used to make jelly, hence the name. Its leafy fronds are a pale green-blue with sharp spines at the base.

The Phoenix Dactylifera produces most of the worlds dates for human consumption. Known by a few common names, the Edible Date Palm or the True Date Palm this also makes a great decorative tree to a landscape. The canopy is less dense than the Canary Island variety, and its foliage is a different shade of green. You can see some of these inside the Lakeside Shopping Centre at Joondalup, though they are not a great example of aesthetic

pruning

. (ooo...bitchy!)

The Sabal Palmetto, is often mis-identified as a cotton palm when very young. The similar looking fronds however, feature no thorns or spines, and the remains left on the trunk form a much looser lattice pattern than the Washingtonia. They can self pollinate producing small round fruit which ripens to a bluey-black colour.

The Bottle Palm at first seems funny looking, but you can't help but love them. The bulging trunk and tidy crownshaft form a perfect bottle shape, and decorate an area brilliantly. Like the Bangalo, these are fairly easy to maintain yourself.

The Travellers palm is not actually a true palm tree. It is closely related to the streletzia family (bird of paradise) and the banana plant. Characteristics of both can be identified in it. The trunk only becomes visible above ground as the plant matures. The large leaves separate into thin strips if the plant is on the receiving end of some decent wind, so location can affect the aesthetic result. From a landscaping point of view, you may wish to grow in a large pot at first, so when you put it in the ground, you can choose the angle it faces. Left unattended you may get an untidy mess of young plants growing in all directions underneath your main specimen. Some delicate

pruning

acheives a great result.