Scientific Name: Lachnagrostis lacunarum Endemic Having a natural distribution confined to a particular geographic region

Common Name: tarn blowngrass

Family Classification (Clade): Monocots

Family: Poaceae

Form Description: Aquatic grass, rooting at nodes, leaves flat 2.5mm wide.

Height (m): 0.2 – 0.4

Flowers: Panicle spreading widely in maturity, less than 12 cm long. Spikelets 2.5-4mm long.

Fruit: Caryopsis

Municipality
No data available for this species
Plant Communities
Alpine and Sub-alpine Vegetation
Habitat Notes

Found in aquatic vegetation in the central mountains.

Site Tolerance

Exposed, Waterlogged, Windy

Soil Tolerance

Nutrient-poor, Poorly-drained

Frost Tolerance

Hardy

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 heads are open and branched and contain numerous small seeds. Harvest by cutting stalks with secateurs. If seed drops from seed head when head is gently rubbed between fingers, the seed is ripe. Sieve to clean.

Seed Treatment Method

Storage Stratification at 3-5°C for up to 3 months may improve results. Place seed in a damp medium, lightly covered. Put moist seeds in a plastic bag and store in the fridge. , Surface Sow Sow seed finely on the surface of the potting mix and cover with just enough mix to hold the seed on the surface when watered.

Seed Storage Life

2-3 years

Seed Treatment Notes

Seed has a 2-3 month after-ripening period. Usually good levels of germination follow storage. Seed should be lightly covered as light is needed for germination. Bog method might also be successful

Cutting & Division Information

Can be propagated by division of rhizomes.