Interesting Facts
Common Names
Common Names in English:
Tall Oatgrass, Tuber Oatgrass
Description
Genus Arrhenatherum
Perennial
. Culms
tall, basal internodes often swollen into globose
corms. Leaf blades
linear
, flat. Inflorescence a moderately dense panicle. Spikelets
weakly laterally compressed
, florets
2, dimorphic
, sometimes with an additional rudiment
, lower floret staminate
and strongly awned
, upper floret bisexual and weakly awned or awnless; rachilla disarticulating
above glumes
but not between florets, extended beyond terminal
floret; glumes unequal, thin, lower glume 1/2 spikelet length or more, 1-veined, upper glume as long as spikelet, 3-veined; lemmas firmly membranous to subleathery, rounded
on back, 5-9-veined, apex 2-denticulate; lower lemma awned from near base
, awn
geniculate
with twisted column, exserted from spikelet; upper lemma with a short straight awn or awnless; palea slightly shorter than lemma, keels ciliate
. Ovary apex hairy
; hilum
linear.
Seven species: SW Asia, Europe, Mediterranean region; one species (introduced
) in China.[1]
Physical Description
Flowers: Bloom Period: April, May, June, July, August. • Flower Color: near white, white
Size/Age/Growth
Size: 6-12" tall.
Biology
Growth
Culture: Space 9-12" apart.
Sunlight: Sun Exposure: Full sun .
Temperature: Cold Hardiness: 5a, 5b, 6a, 6b, 7a, 7b, 8a. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
()
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
()
- (Auct.) Cavalier-Smith, 1998
- Infraphylum:
Angiospermae
()
- Auct.
- Class:
Spermatopsida
()
- Brongniart, 1843
- Subclass:
Commelinidae
()
- Takhtajan, 1967
- Superorder:
Juncanae
()
- Takhtajan, 1967
- Order:
Poales
()
- Small, 1903
- Family:
Gramineae
()
- A.L. de Jussieu, 1789, nom. cons., nom. alt.
- Subfamily:
Pooideae
()
- Tribe:
Aveneae
()
- Subtribe:
Aveninae
()
- Genus:
Arrhenatherum
()
- Palisot de Beauvois, 1812
- Oatgrass
- Specific epithet:
elatius
- (Willd.) Spenner
- Variety:
bulbosum
- Botanical name: - Arrhenatherum elatius var. bulbosum (Willd.) Spenner
- Variety:
bulbosum
- Specific epithet:
elatius
- (Willd.) Spenner
- Genus:
Arrhenatherum
(
- Subtribe:
Aveninae
(
- Tribe:
Aveneae
(
- Subfamily:
Pooideae
(
- Family:
Gramineae
(
- Order:
Poales
(
- Superorder:
Juncanae
(
- Subclass:
Commelinidae
(
- Class:
Spermatopsida
(
- Infraphylum:
Angiospermae
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Synonyms
Arrhenatherum elatius bulbosum (Willd.) Schübler & G. Martens • Arrhenatherum elatius var. tuberosum Thiel. • Arrhenatherum Elatus Tuberosum
Notes
Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000
Similar Species
Members of the genus Arrhenatherum
ZipcodeZoo has pages for 5 species, subspecies, varieties, forms, and cultivars in this genus:
A. elatius (False Oat Grass) · A. elatius bulbosum var. bulbosum (Tall Oatgrass) · A. elatius bulbosum 'Variegatum' (Bulbous Oat Grass) · A. elatius var. bulbosum (Tuber Oatgrass) · A. elatius var. elatius (Tall Oatgrass)
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Britton, N. L. (ed.). North American flora. [New York]New York Botanical Garden. url p. 576.
- Manual of the grasses of the United States / by A.S. Hitchcock. Washington: U.S. G.P.O., 1935. url p. 298, p. 7, p. 802.
- Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url p. 173.
- Plant Form OXFORD UNIVERSITY PRESS url p. 181.
- Some grasses of the Northeast: a key to their identification by vegetative characters. Newark, Delaware: University of Delaware, Agricultural Experiment Station, 1962. url p. 64, p. 68.
Notes
Contributors
- Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
Identifiers
- Catalogue of Life Accepted Name Code: ITS-185329
- Global Biodiversity Information Facility Taxonkey: 13896868
- Globally Unique Identifier: urn:lsid:ipni.org:names:140646-3
- International Plant Names Index (IPNI) ID: 140646-3
- Zipcode Zoo Species Identifier: 1501581
Footnotes
- Zhen-lan Wu & Sylvia M. Phillips "Arrhenatherum". in Flora of China Vol. 22 Page 6, 316, 322. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
