Family Index

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Scientific Name

Isoetes gunnii

Family Name

ISOETACEAE

Common Name

Stout quillwort

Status

Height

leaves 0.03m - 0.38m (3-38cm)

Flowers

None

Fruit

Spores

Form

Tall stout aquatic fern ally; which forms a tussock of hollow leaves , undivided and circular in cross-section;rootstock 3-lobed.

Municipalities

Central Coast; Central Highlands; Derwent Valley; Huon Valley; Kentish; Meander Valley; Northern Midlands; West Coast

Communities

Montane Vegetation; In tarns, lakes and rivers

Habitat Notes

Tas. endemic. Common & widespread in high- land tarns, natural lakes and rivers at a variety of elevations. Plants which occur in rocky or gravelly substrate in flowing water or seasonally very shallow margins of lakes may form clumps only a few centimetres in height. At greater depths, in mud, leaves may reach 38cm.

Site Tolerance

Rocky; Waterlogged

Frost Tolerance

Soil Tolerance

Gravel; Mud

General Notes

Plants can be transplanted fairly readily and will grow in a submerged pot of soil topped with gravel. Can be grown as an aquarium plant in cold water. Propagation techniques are unknown. 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

Spores contained in sporophylls clustered into a bulbous base

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