Alpinia caerulea —Native Ginger. Large-leaved Ginger—ZINGIBERACEAE

Alpinia caerulea

Link to Images on Flickr.

Habitat—Widespread in coastal rainforest and Wet Sclerophyll Forest.

Distribution—North from the Gosford district in New South Wales into Queensland.

Description—Perennial herb to 3 m high.

Local occurrences

Black Head, Black Head Flora Park, Booti Hill, Cape Hawke, Cellito, Diamond Beach, Diamond Beach LRF, Dixon Property, Elizabeth Beach, Great Lakes College-Forster Campus, Great Lakes College-Tuncurry Campus, Royal Botanic Gardens Sydney, Saltwater Nature Reserve, Sea Acres National Park, Second Head, Wallamba Cove and Zamia Place Reserve.

Leaves.—Leaves simple, alternate, glossy green with lamina oblong—lanceolate, up to 40 cm long and 3—10 cm wide, glabrous, apex acuminate; shortly petiolate or sessile; ligule usually 10—15 mm long, entire, or slightly emarginate.

Alpinia caerulea
Alpinia caerulea

Inflorescence.—Flowers pale pinkish—white,10—30 cm long, glabrous; pedicels 10—20 mm long. Outer tepals c. 10 mm long; inner tepal tube c. 12—14 mm long, lobes 5—8 mm long, yellow; labellum circular, shortly clawed, shortly 2—lobed, c. 10 mm diam. Lateral staminodes c. 1 mm long, filament 2—3 mm long. Ovary to 6 mm long, usually pubescent, 3-locular.

Flowering.—September to November

Fruit—Capsule globose, c. 10 mm diam. with a brittle blue outer covering.

Ripe.—February to May

Alpinia caerulea