ancient-plant Australia Australian burrawang common cone cycad cycads dioecious erect firm-fronds fruit glaucous hardy inedible large leaves macrozamia-riedlei pineapple-like-cones poisonous seed-cones seed-pods toxic toxins waxy-coating Western-Australian widespread zamia-palms zamias cones nature pine pines seed seeds stick tree trees twig cutout isolated strobile brown larch multiplicity multiply pinecone earth Fir grass green grow growing heather needle needles nursery plant protect regrow rock seedling small tender tube young christmas conifer evergreen natural norway Picea abies scale softwood spruce botanical botany bough bracts branch branches camping conservation creation ecology ecosystem environment forest growth hiking outdoors outside planet reproduce sap save species spore wild appearance durable firm fronds painted appearance pineapple-shaped primitive resistant seed pod shape strange surface temperate texture textures unusual