Family Index

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Scientific Name

Ruppia tuberosa

Family Name

RUPPIACEAE

Common Name

Tuberous Seatassel

Status

Rare

Height

Flowers

Two small flowers in terminal spikes. Flowering stalk up to 30cm long, regularly shorter where plants are exposed at low tides.

Fruit

Form

Submerged slender aquatic herb, perennial, with stems up to 2cm long and thread-like leaves.

Municipalities

Communities

Habitat Notes

Holes and channels in saltmarshes, Ralphs Bay and Blackman Bay, East Coast.

Site Tolerance

Frost Tolerance

Soil Tolerance

General Notes

Not easily grown from seed. Sow in shallow water using the bog method. Can be propagated easily by division of rhizomes. Commonly produces turions, fleshy storage organs which overwinter and then start growth in the spring. 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

Pollination occurs on or below the water surface. Fruits are 2mm long, and turn black when mature.

Seed Treatment Method

Bog 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.

Yes

Cutting Notes