We are using Achnatherum miliaceum as the correct name for this taxon, following the treatment in the Kew 'World Checklist of Selected Plant Families' (http://wcsp.science.kew.org/namedetail.do?name_id=387299). However, several other sources, including 'The Euro+Med OlantBase (http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameCache=Piptatherum miliaceum&PTRefFk=7100000) do not accept this and treat this taxon as Piptatherum miliaceum (L.) Coss. To further complicate matters, the name Oloptum miliaceum (L.) Röser & Hamasha has been proposed in Pl. Syst. Evol. 298: 365 (2012).
Agrostis miliacea L.
Milium multiflorum Cav.
Piptatherum miliaceum (L.) Coss.
Urachne parviflora Trin.
Piptatherum frutescens Schult.
Urachne multiflora Link
Urachne miliacea (L.) K.Koch
Oryzopsis miliacea (L.) Asch. & Schweinf.
Oryzopsis multiflora Druce
Nassella multiflora Druce
Stipa miliacea (L.) Hoover
Oloptum miliaceum (L.) Röser & Hamasha
Agrostis sepium L.
Agrostis sepium Jacq.
Agrostis oseroensis Seenus
Milium arundinaceum Sm.
Agrostis graeca Sibth.
Agrostis monandra Hornem.
Agrostis comosa Poir.
Agrostis milium-comosum Poir.
Milium comosum Poir.
Piptatherum multiflorum P.Beauv.
Piptatherum comosum (Poir.) Roem. & Schult.
Milium microspermum Hornem.
Milium frutescens Link
Urachne frutescens Link
Milium thomasii Duby
Piptatherum thomasii (Duby) Kunth
Agrostis berica Steud.
Agrostis dispar Steud.
Milium gaditanum Steud.
Milium pauciflorum Trin.
Urachne thomasii (Duby) Steud.
Urachne pauciflora Boiss.
Urachne comosa B.D.Jacks.
Oryzopsis pauciflora Bég. & Vacc.
Piptatherum verticillatum Vayr.
Oryzopsis thomasii (Duby) P.Silva
Oloptum thomasii (Duby) Banfi & Galasso
Achnatherum miliaceum is a clump-forming, perennial grass with erect to ascending culms 100 - 150cm long.
The plant is used in soil remediation projects, where it can be used to help remove various metals from the soil.
The plant has become naturalized in many areas outside its native range and is considred to be an invasive weed in several of these areas[
Macaronesia, throughout the Mediterranean and east to Iraq, Iran and the Arabian Peninsula
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Achnatherum miliaceum is a fast-growing plant with high biomass production and a high density of fine roots. It can accumulate trace elements such as copper, lead or zinc without showing any toxicity symptoms. It accumulates these metals in its foliage, meaning it can be used to remove the metals from the soil by cutting and removing the foliage at intervals. In addition, its network of fine roots means that it helps stabilize the soil and reduce erosion. It succeeds in soils contaminated with these metals, but tends to grow slowly. By planting it with a legume to add nitrogen and other nutrients to the soil (Bituminaria bituminosa has proven to be very successful), growth is enhanced and overall coverage of the ground much increased.