Scientific Name: Bolboschoenus medianus

Common Name: marsh clubsedge

Family Classification (Clade): Monocots

Family: Cyperaceae

Threatened Species Status: Rare

Permit: It is an offence to collect, disturb, damage or destroy this species unless under permit.

Form Description: Summer-green perennial with lime-green, often solitary stems and alternate leaves.

Height (m): 0.3 – 0.6

Flowers: In compact heads of mid-brown, many-flowered spikelets.

Fruit: Nut – greyish-black and shining, 3-4mm long.

Municipality
Northern Midlands
Plant Communities
No data available for this species
Habitat Notes

Known only from two sites in the Midlands, growing in heavy black mud.

Propagation Calendar

  • Flowering Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Seed Collecting Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sowing Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Cutting Month
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Propagation Method
Seed, Division

Seed Information

Seed Collection

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. If not sown soon after collection, seed requires several months of cold dry storage.

Seed Treatment Method

Bog Method The seeds of many wetland species need to be kept wet to germinate. Punch a hole in the side of a recycled polyfoam box so that it holds water to the required depth. Sit the tubes in the box to germinate. Once germinated, punch holes in the bottom of the box to allow drainage.

Seed Treatment Notes

Surface sow seed in warm conditions. 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. Bolboschoenus species have been used successfully in direct seeding.

Cutting & Division Information

Grown easily by division of suckers.