Published July 1, 2014 | Version v1
Taxonomic treatment Open

Ehrharta stipoides Labill.

  • 1. Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AB, United Kingdom
  • 2. Kew Madagascar Conservation Centre, II J 131 B, Ambodivoanjo Ivandry, Antananarivo 101, Madagascar.
  • 3. Université de Toulouse, ENFA, UMR 5174 EDB (Laboratoire Evolution & Diversité Biologique), route de Narbonne 118, 31062 Toulouse, France and CNRS, Université Paul Sabatier, UMR 5174 EDB, 31062 Toulouse, France.

Description

Ehrharta stipoides Labill., Nov. Holl. Pl. 1: 91. 1805.

Microlaena stipoides (Labill.) R. Br., Prodr.: 210. 1810.

Typus: AUSTRALIA. Tasmania: Capite van-Dieman, Labillardière s.n. (holo-: FI).

Observations. – An Australian and South East Asian species, Ehrharta stipoides Labill. (also referred to as Microlaena stipoides (Labill.) R. Br. or meadow rice grass, now included in the genus Ehrharta Thunb. following Verboom & al. 2003) is recorded as naturalised in Kwa-Zulu Natal, Sri Lanka, and Easter Island (WCSP, 2014), and in both Hawaii and Réunion, where it has become invasive (PACIFIC ISLAND ECOSYSTEMS AT RISK, 2014). It invades disturbed sites rapidly as the awned florets are dispersed on clothing or animal fur and is reported to increase with fire (HAWAIIAN ALIEN PLANT STUDIES, 2014). With its distinctive long awns this species is rarely misidentified and is more likely to attract the attention of collectors than other Poaceae. The lack of other collections and other sightings suggests this could be a recent arrival brought in by visitors to the Andringitra National Park. No other species of Ehrharta have been recorded in Madagascar in spite of the common occurrence of E. erecta Lam. in South Africa and Réunion.

Specimen examined.MADAGASCAR. Prov. Fianarantsoa: Parc National Andringitra, Riampotsy, at camp 3, single plant sheltered under the picnic table, 22°10’49’’S 46°54’12’’E, 2064 m, 28.X.2013, Nanjarisoa, Vorontsova, Rakotonasolo & Joseph 90 (K!, P!, TAN!).

Notes

Published as part of Vorontsova, Maria S., Nanjarisoa, Olinirina Prisca & Besnard, Guillaume, 2014, Three new grass records for Madagascar, pp. 85-87 in Candollea 69 (1) on page 86, DOI: 10.15553/c2014v691a10, http://zenodo.org/record/5715359

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Linked records

Additional details

Biodiversity

Collection code
FI , K, P, TAN
Event date
2013-10-28
Family
Poaceae
Genus
Ehrharta
Kingdom
Plantae
Order
Poales
Phylum
Tracheophyta
Scientific name authorship
Labill.
Species
stipoides
Taxon rank
species
Type status
holotype
Verbatim event date
2013-10-28

References

  • VERBOOM, G. A., LINDER, H. P., & W. D. STOCK (2003). Phylogenetics of the grass genus Ehrharta: evidence for radiation in the summer-arid zone of the South African Cape. Evolution 57: 1008 - 1021.
  • WCSP (2014). World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew [http: // apps. kew. org / wcsp].
  • PACIFIC ISLAND ECOSYSTEMS AT RISK (2014). Microlaena stipoides [http: // www. hear. org / pier / species / microlaena _ stipoides. htm].
  • HAWAIIAN ALIEN PLANT STUDIES (2014). Pest plants of Hawaiian native ecosystems [http: // www. botany. hawaii. edu / faculty / cw _ smith / ehr _ sti. htm].