Family Index

Image not available.

Scientific Name

Halophila australis

Family Name

HYDROCHARITACEAE

Common Name

Sea-wrack

Status

Height

Flowers

Male flowers are found among the leaf axils of the prostrate stem, females on erect branches up to 15cm long.

Fruit

Form

Submerged, smooth perennial herb with a slender, creeping stem and paired leaves.

Municipalities

Break O'Day; Burnie; Central Coast; Dorset; Georgetown; Glamorgan-Spring Bay; Huon Valley; Kentish; Kingborough; Latrobe; West Tamar

Communities

Habitat Notes

At and below the low water level of spring tides. Collected on the East Coast, Barnes Bay, Coles Bay and George Town in the North East.

Site Tolerance

Frost Tolerance

Soil Tolerance

General Notes

Suitable below powerlines.

Propagation Details

Propagation Calendar

Flowering Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Collecting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sowing Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Cutting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Information

Seed Collection

Fruit 7-13mm long.

Seed Treatment Method

Seed Storage Life

Viable Seeds Per Gram

Seed Treatment Notes

Germination Time

Suitable for Direct Seeding

Cuttings

Expected Time to Take Root

Expected Time to Plant Out

Propagation by Division N.B. Transplant only from nearby to avoid disease.

Cutting Notes