''Catapodium rigidum'', ferngrass, is a species of annual grass in the family

Poaceae Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns an ...

(true grasses), distributed around the Mediterranean and the Middle East. It has been widely introduced throughout drier parts of the world, including parts of North America, South America, South Africa, Korea, Australia, and New Zealand. Individuals can reach .

Subtaxa

The following subtaxa are accepted: *''Catapodium rigidum'' subsp. ''hemipoa'' - more narrowly distributed from Macaronesia and the Mediterranean to Iran *''Catapodium rigidum'' var. ''majus'' - Middle East *''Catapodium rigidum'' subsp. ''rigidum'' – entire range, including introductions

References

rigidum Flora of Macaronesia Flora of North Africa Flora of Ireland Flora of Great Britain Flora of Southwestern Europe Flora of Belgium Flora of the Netherlands Flora of Germany Flora of Switzerland Flora of the Crimean Peninsula Flora of the Caucasus Flora of Western Asia Flora of the Arabian Peninsula Flora of Djibouti {{Pooideae-stub