- leg
- legitimacy
- leguminous ironbark
- leichhardt
- leichhardt-bean
- Leichhardt's clustered-fig
- lemon, desert
- lemon-scented gum
- lemon-scented ironbark
- lemon-sole
- lemon, wild
- lemon-wood
- leopard-tree
- lerp
- lift
- light-horseman
- lightwood
- light yellow-wood
- lignum-vitae
- lignum
- lilac
- lily, darling
- lily, flax
- lily, giant
- lily, gordon
- lily, murray
- lilly-pilly
- lily, rock
- lily, water
- lily, yellow
- lime, native
- ling
- lobster
- lobster's – claw
- locust
- locust-tree
- logan-apple
- log-hut
- log-runner
- logs
- log up
- lolly
- long-fin
- long-jack
- long-sleever
- long-tom
- long-yam
- look
- lope
- loquat
- lorikeet
- lory
- lotus-bird
- lowan
- lowrie
- lubra
- paddy
- lucerne, native
- ludrick
- luderick
- lugg
- lyonsia
- lyre-bird
- mackerel
- macquarie harbour grape
- macquarie pine
- macropus
- mado
- magpie
- magpie-goose
- magpie-lark
- magpie-perch
- magra
- mahoe
- mahogany
- mai
- maiden's blush
- maire
- major buller
- major groce
- major mitchell
- make a light
- mako
- mallee
- mallee-bird
- mallee-fowl
- mallee-hen
- mallee-scrub
- malurus
- mana
- mangaroo
- mangeao
- mangi
- mango
- mangrove
- mangrove-myrtle
- manna
- manna-grass
- manna-gum
- manoao