Common Nardoo, Nardoo
Marsilea drummondii
Family: Marsileaceae
What it is like
Marsilea drummondii is a FERN growing to 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 9 and is frost tender. The species is hermaphrodite (has both male and female organs). Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers wet soil and can grow in water.
Height (m): 0.3
Where it is found
Growing in mud and shallow water in the montane zone, spreading widely in all mainland states.
Australia.
Conservation Status:
Countries/locations it is found in
How it is used
Food
Rating: 1
Spores - cooked. A source of starch, the spores can be ground into a powder and used like flour. They are astringent and highly indigestible. The spores are contained in a sporocarp.
Seed: includes nuts, cereals, peas and beans.
Medicine
Rating: 0
Other
Rating:
How it is grown
Plants are hardy to about -7°c in Australian gardens, though this cannot be translated directly to British gardens due to our cooler summers and longer, colder and wetter winters.
Propagating it: Spores. The plant produces sporocarps, these need to be lightly abraded and then immersed in water. The sporocarps will then swell and burst to release the spores. The spores germinate immediately, the highly developed prothallus remains inside the large seed-like spores. The gametophyte generation is completed in 24 hours and the first roots and shoots appear in 2 - 3 days. Mature plants bearing sporocarps can develop in as little as 3 months. Spore germination in the family occurs after rupture of the sporocarp wall allows the sporocarp contents to be hydrated. A gelatinous structure emerges from the sporocarp, breaking it into valves and carrying the sori into the water. Spore germination (gametophyte growth) and fertilization occur immediately. Division.
Best place to grow: Bog Garden; Cultivated Beds;
Habit: Fern
Hardiness: 8-11
Growth:
Soil: Light (sandy), medium, heavy (clay)
Shade: Semi-shade, no shade
Moisture: Wet, water