Poa infirma

Species of grass

Poa infirma

Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Monocots
Clade:  | Commelinids
Order:  | Poales
Family:  | Poaceae
Subfamily:  | Pooideae
Genus:  | Poa
Species:  |

P. infirma

Binomial name
Poa infirma

Kunth

Poa infirma is a species of grass known by the common names early meadow-grass[1] and weak bluegrass. It was first described from a specimen found in Colombia, but it is actually an introduced species in the Americas and is native to Europe.[2] It grows in many types of habitat, including disturbed areas. It is very similar to Poa annua, which is probably a daughter species,[2] and it is often mistaken for P. annua unless it is closely examined.[3]

This is a small, densely tufted annual grass growing up to 15 centimetres (6 in) tall. It has thin, soft-haired, yellow-green leaves. The inflorescence is a series of branches bearing flattened spikelets which have tufts of curly hairs.

## References[edit]

1. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
2. ^ a b Grass Manual Treatment
3. ^ Chester, T. Plants of Southern California: Poa annua and P. infirma

## Further reading[edit]

* Takagi-Arigho, Ray (1994) Poa infirma \- Flourishing? ... or Fleeing? BSBI News 65:14-18 (gives details of the plant's status and habitat in southwest England)

## External links[edit]

* Jepson Manual Treatment
* USDA Plants Profile

Taxon identifiers|

* Wikidata: Q7206138
* Wikispecies: Poa infirma
* APDB: 159453
* APNI: 90169
* Calflora: 6673
* CoL: 4KLZC
* EoL: 1115655
* EPPO: POAIN
* EUNIS: 192905
* FoAO2: Poa infirma
* FoC: 250034219
* FoIO: POAINF
* GBIF: 2704194
* GrassBase: imp08305
* GRIN: 427086
* iNaturalist: 78642
* IPNI: 417256-1
* IRMNG: 10696026
* ISC: 116407
* ITIS: 507121
* NatureServe: 2.135754
* NBN: NBNSYS0000002545
* NCBI: 165094
* NSWFlora: Poa~infirma
* NZOR: 5627b701-ec03-4148-ad51-92b3f501baa7
* NZPCN: 3107
* Open Tree of Life: 254228
* PFI: 7175
* Plant List: kew-436189
* PLANTS: POIN30
* POWO: urn:lsid:ipni.org:names:417256-1
* Tropicos: 25514158
* VASCAN: 7872
* VicFlora: d27d738b-d178-476a-9346-936edf55bce4
* WoI: 1612
* WFO: wfo-0000892617

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