Kingdom:
Phylum:
Angiosperms
Order:
Poales
Family:
Species:
irritans
ID:
895579

Status:
valid

Authors:
(R.Br.) A.Camus

Source:
wcs

Year:
1922

Citation Micro:
Ann. Soc. Linn. Lyon , n.s., 68: 205 (1922)

WFO Identifier:
wfo-0000894914

Common Names

  • Pseudopogonatherum irritans
  • Irritans Grass
  • Irritans Reed

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Description

Pseudopogonatherum irritans (also called Irritans, among many other common names) is a perennial herbaceous plant native to South America. It has a creeping rhizome and grows up to 30 cm tall. Its leaves are lanceolate, up to 8 cm long, and its flowers are white or pink. It is found in moist meadows, grasslands, and open forests.

Uses & Benefits

Pseudopogonatherum irritans is used as an ornamental plant in gardens and parks. It is also used as a medicinal plant to treat fever, headache, and other ailments.

Flower, Seeds and Seedlings

Pseudopogonatherum irritans has small, yellow flowers that are arranged in a spike-like inflorescence. The seeds are small, dark brown, and ovoid in shape. The seedlings have a pair of cotyledons that are broadly ovate and have a toothed margin.

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Cultivation and Propagation

Pseudopogonatherum irritans can be propagated from seed or division. Seeds should be sown in a well-draining, sandy soil mix and kept moist. Division is best done in spring or early summer. The plant should be divided into sections with at least two shoots each. Replant the divisions in a well-draining soil mix and keep moist.

Where to Find Pseudopogonatherum irritans

Pseudopogonatherum irritans is native to Madagascar and can be found in open grasslands and woodlands.

Species in the Poaceae family

Achnatherum pekinense, Achnatherum pubicalyx, Achnatherum sibiricum, Achnatherum turcomanicum, Achnatherum brandisii, Achnatherum bromoides, Achnatherum calamagrostis, Achnatherum confusum, Achnatherum inebrians, Achnatherum jacquemontii, Achnatherum virescens, Achnatherum paradoxum, Achnatherum nakaii, Achnatherum pelliotii, Achnatherum haussknechtii, Achnatherum mandavillei, Achnatherum pilosum, Achnatherum parviflorum, Achnatherum staintonii, Aciachne acicularis, Aciachne flagellifera, Aciachne pulvinata, Acidosasa breviclavata, Acidosasa brilletii, Acidosasa chinensis, Acidosasa edulis, Acidosasa glauca, Acidosasa guangxiensis, Acidosasa lingchuanensis, Acidosasa nanunica, Acidosasa notata, Acidosasa purpurea, Acidosasa venusta, Acidosasa carinata, Acostia gracilis, Acrachne henrardiana, Acrachne perrieri, Acrachne racemosa, Acritochaete volkensii, Acroceras amplectens, Acroceras attenuatum, Acroceras boivinii, Acroceras bosseri, Acroceras calcicola, Acroceras chaseae, Acroceras diffusum, Acroceras elegans, Acroceras excavatum, Acroceras fluminense, Acroceras gabunense,

References

Robert Brown (1773-1858): Based on occurrence of standard abbreviation 'R.Br.' in the authors string.
Aimée Antoinette Camus (1879-1965): Based on occurrence of standard abbreviation 'A.Camus' in the authors string.
POWO record for urn:lsid:ipni.org:names:113520-3: Govaerts R (ed.). 2023. WCVP: World Checklist of Vascular Plants [Version 11]. Facilitated by the Royal Botanic Gardens, Kew. [WWW document] URL http://sftp.kew.org/pub/data-repositories/WCVP/ [accessed 20 April 2023].