A List of Plants Id like to Test:
Pacific Waterleaf Hydrophyllum tenuipes similar species Surinam Purslane
Great Burdock Arctium lappa
Stinging Nettle Urtica dioica
Fireweed Senecio madagascariensis
Milkweed Euphorbia peplus
Cattail Typha latifolia
Several of these plants grow in Australia. I swear Ive seen Pacific Water Leaf some where. However there are several similar plants Id like to see If I can process to a use-able material for using with a flint and steel without charring.