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Species
Aira
IUCN
NCBI
EOL Text
Chile Central
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Pablo Gutierrez, IABIN |
Source | No source database. |
Annuals, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clust ered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Basal leaves equal to or exceeding stems, culms, or scapes, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence solitary, with 1 spik e, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence with 2-10 branches, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes keeled or winged, Glumes 1 nerved, Glumes 3 nerved, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma 3 nerved, Lemma 5-7 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn less than 1 cm long, Lemma awn subapical or dorsal, Lemma awn once geniculate, bent once, Lemm a margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea shorter than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis white, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Compiled from several sources by Dr. David Bogler, Missouri Botanical Garden in collaboration with the USDA NRCS NPDC |
Source | http://plants.usda.gov/java/profile?symbol=AIEL4 |
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
United States
Rounded National Status Rank: NNA - Not Applicable
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Aira+elegans |
Rounded Global Status Rank: GNR - Not Yet Ranked
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Aira+elegans |
Comments: Specific epithet is misspelled "elgans" in Kartesz' checklist (1994). Authorship is Aira elegans Willd. ex Gaudin in Hitchcock, 1951.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Aira+elegans |
Small annuals. Inflorescence an open or contracted panicle. Spikelets 2-flowered, (both florets bisexual), laterally flattened, disarticulating above the glumes and between the florets. Glumes subequal and similar, persistent, usually hyaline, awnless, enclosing the florets except for the awns. Lemmas shorter than the glumes, dorsally rounded, 5-nerved, geniculately dorsally awned from below the middle; apex acute to acuminate, usually 2-dentate.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=132 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:26
Specimens with Sequences:57
Specimens with Barcodes:41
Species:5
Species With Barcodes:5
Public Records:24
Public Species:4
Public BINs:0
Aira is a genus of Old World plants in the grass family, native to western and southern Europe, central and southwest Asia, plus Africa. [4][5]
The common name, shared with the similar related genera Deschampsia and Koeleria, is hair-grass, from the very slender leaves and stems. The species typically occur on dry, sandy sites, and grow to 20–40 cm tall.
Several species are grown as ornamental plants for their very delicate airy seed heads, used in dried flower arrangements.
- Aira caryophyllea - Europe, North Africa, alpine Africa, Madagascar, Mauritius, Caucasus, Tibet
- Aira cupaniana - Canary Islands, Mediterranean
- Aira elegantissima - Central Europe, Mediterranean, Iran, Caucasus
- Aira × hybrida - Switzerland
- Aira praecox - Europe, Canary Is, Turkey
- Aira provincialis - France incl Corsica
- Aira scoparia - Macedonia
- Aira tenorei - Mediterranean
- Aira uniaristata Portugal, Spain, Libya, Morocco
- formerly included[6]
Many species now considered better suited to other genera: Agrostis Antinoria Arundinella Arundo Catabrosa Colpodium Corynephorus Cyrtococcum Deschampsia Ehrharta Eragrostis Eremopoa Eriachne Eustachys Hierochloe Koeleria Molinia Pentameris Peyritschia Poa Puccinellia Rostraria Scolochloa Sesleria Sphenopholis Sporobolus Tricholaena Trisetum etc
See also[edit]
Wikispecies has information related to: Aira |
Wikimedia Commons has media related to Aira. |
References[edit]
- ^ lectotype designated by Hitchcock, International Bot. Congr. Cambridge (England), 1930. Nomenclature. Proposals by British Botanists 114-155 (1929)
- ^ Tropicos, Aira L.
- ^ Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone. 2003 and onwards. On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48. http://www.tropicos.org/Project/CNWG:. In R. J. Soreng, G. Davidse, P. M. Peterson, F. O. Zuloaga, T. S. Filgueiras, E. J. Judziewicz & O. Morrone (eds.) Internet Catalogue of New World Grasses. Missouri Botanical Garden, St. Louis.
- ^ Linnaeus, Carl von. 1753. Species Plantarum 1: 63-66 in Latin
- ^ Altervista Flora Italiana, genere Aira
- ^ a b Kew World Checklist of Selected Plant Families
- ^ The Plant List search for Aira
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License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Aira&oldid=647267226 |