Alpinia Roxb.

Inflorescence branched. Stamens not exserted, lateral staminodes reduced to teeth or absent Alpinia
Inflorescence 2–8 cm long. Ligule 3–4 mm long. Leaves lanceolate, 12–25 cm long, 2–4 cm wide. Outer perianth 3–4 mm long: inner perianth tube 3–4 mm long. Labellum reniform. Lateral staminodes minute. Ovary 2 mm long, glabrous. Fruit blue-black. Herbs with erect leafy stems up to 1.5 m high. North from Wyong. WSF & RF. Fl. spring – summer Native Ginger Alpinia arundelliana
Inflorescence 12–30 cm long. Ligule usually 10–15 mm long. Leaves oblong-lanceolate to 40 cm long, 3–10 cm wide. Outer perianth c. 10 mm long; inner perianth tube c. 12 mm long, lobes c. 7 mm long. Labellum circular. Lateral staminodes c. 1 mm long. Ovary to 6 mm long, usually hairy. Fruit globular, c. 10 mm diam., blue, with a brittle pericarp. Herb to 3 m high. North from Gosford. Coastal RF. Fl. spring Alpinia caerulea