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Catapodium rigidum, ferngrass, is a species of annual grass in the family Poaceae (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.[1] Individuals can reach 20 cm (8 in).[2]

Catapodium rigidum
habit
Botanical illustration
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Pooideae
Genus:	Catapodium
Species:	C. rigidum
Binomial name
Catapodium rigidum (L.) C.E.Hubb.
Synonyms[1]
List Catapodium hemipoa (Delile ex Spreng.) Laínz Catapodium hemipoa subsp. occidentale (Paunero) H.Scholz & S.Scholz Catapodium occidentale Paunero Catapodium rigidum subsp. majus (C.Presl) F.H.Perring & P.D.Sell Catapodium rigidum f. robustum (Duval-Jouve) O.Bolòs & Vigo Catapodium rigidum subsp. spicatum (Trab.) Rivas Mart. Catapodium rigidum var. spicatum (Trab.) O.Bolòs & Vigo Catapodium zwierleinii (Lojac.) Brullo Desmazeria rigida (L.) Tutin Desmazeria rigida subsp. hemipoa (Delile ex Spreng.) Stace Desmazeria rigida var. major (C.Presl) Stace Desmazeria rigida var. spicata (Trab.) O.Bolòs & Vigo Diplachne rigida (L.) Chapm. Festuca divaricata Roth Festuca hemipoa Delile ex Spreng. Festuca maritima subsp. hemipoa (Delile ex Spreng.) Ball Festuca rigens Trin. ex Steud. Festuca rigida (L.) Raspail Glyceria rigida (L.) Sm. Megastachya pulchella Roem. & Schult. Megastachya rigida (L.) Roem. & Schult. Poa cristata Walter Poa hemipoa (Delile ex Spreng.) Loret & Barrandon Poa pulchella Steven ex M.Bieb. Poa rigida L. Sclerochloa filiformis Tornab. Sclerochloa hemipoa (Delile ex Spreng.) Guss. Sclerochloa patens C.Presl Sclerochloa racemosa (Sennen) Sennen Sclerochloa rigida (L.) Link Sclerochloa rigida var. major C.Presl Sclerochloa zwierleinii Lojac. Scleropoa hemipoa (Delile ex Spreng.) Parl. Scleropoa racemosa Sennen Scleropoa rigida (L.) Griseb. Scleropoa rigida subsp. hemipoa (Delile ex Spreng.) Bonnier & Layens Scleropoa subspicata Sennen Scleropoa villaris Sennen & Mauricio Synaphe rigida (L.) Dulac Triticum hemipoa (Delile ex Spreng.) Delile ex Ten.

Subtaxa

The following subtaxa are accepted:[1]

• Catapodium rigidum subsp. hemipoa (Delile ex Spreng.) Kerguélen - more narrowly distributed from Macaronesia and the Mediterranean to Iran
• Catapodium rigidum var. majus (C.Presl) M.Laínz - Middle East
• Catapodium rigidum subsp. rigidum – entire range, including introductions

References

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