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Scientific Name
Bolboschoenus caldwellii
Family Name
CYPERACEAE
Common Name
Sea Clubsedge
Status
Rare
Height
30-90cm
Flowers
In heads of 2-6 chestnut-brown, many-flowered spikelets.
Fruit
Nut
Form
Summer-green, perennial plant with lime-green, tufted, leafy stems which are triangular in cross-section.
Municipalities
Break O'Day; Brighton; Clarence; Dorset; Flinders Island; Georgetown; Glamorgan-Spring Bay; Glenorchy; Hobart; Launceston; Northern Midlands; Southern Midlands; West Coast
Communities
Habitat Notes
Shallow standing water, sometimes brackish water, growing in heavy black mud. North East, Midlands and East Coast.
Site Tolerance
Frost Tolerance
Soil Tolerance
General Notes
Surface sow seed in warm conditions; if not sown soon after collection, seed requires several months of cold dry storage. Heat treatment may improve results, especially for seed that is not fresh. Leaching (running water for 2-4 hours or soaking for 12 hours, changing the water every 4 hours) may also improve results. Grown easily by division of suckers. Bolboschoenus species have been used successfully in direct seeding. 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
Nut greenish to golden-brown, smooth and shining, 3.5mm long. Seed is released within 3-14 days of seed maturity. Cut stalks with secateurs to collect, place upside down in a bag to dry, rub between hands to extract all seed and sieve to clean.
Seed Treatment Method
Bog method
Seed Storage Life
Viable Seeds Per Gram
Seed Treatment Notes
Germination Time
Suitable for Direct Seeding
Yes
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
Copyright 2000-2009, Understorey Network Incorporated. Updated 2024-11-22
Database development and website design by
Andrew Smith