Fruit of the Rose Cactus (aka Wax Rose) (Pereskia bleo)

Wild white moth orchid on a tree trunk

Beautiful tree

A rain tree (?)

Indian Head Ginger (Costus spicatus)

Pink bougainvillea

Hairy mint (?)

New sprouts from an old stump

Butterfly pea (Clitoria ternatea )

(Also known as Blue pea, Blue vine, etc)

Orange Bird of Paradise

Blue Trumpet Vine (Thunbergia Grandiflora)

Mexican Petunia (Ruellia Brittoniana)

Yellow Ixora

Mickey Mouse plant (Ochna Kirkii )

The seed pod - its appearance is the reason for the name of the plant.

buds of the Night Blooming Cereus

a ripe lime

Herba Abri (鸡骨草)

(Also known as Canton Love-pea Vine)

Lagerstroemia speciosa (Queen's Crepe Myrtle)

Oyster Plant (Rhoeo spathacea)

(also known as Moses-in-the-Cradle)

Bengal Trumpet (Thunbergia grandiflora)

purple fountain grass

white orchid

exquisite fronds of a palm

flower of the water spinach ("kangkong")

desert rose

white & purple water lily

dainty little white flowers

(not sure what's the name)

PS - It is the  Mexican Sword Plant (see comments).

orchid look-alike

(still trying to find out its name)

sprouting new shoots

African Tulip

Yellow Flame

pink Torch Ginger

orange-colored bougainvillea

candlestick cassia

(cassia alata)

allamandas

colorful Canna

(at the Istana Park)

Garlic Vine

Buttercup

graceful little yellow flower

Sage Rose (Turnera ulmifolia), in half bloom

Dwarf Poinciana

Dissotis Princeps

or tibouchina? (hope I've got the name right)