Overview
Interesting Facts
Common Names
Common Names in English:
Tall Oatgrass, Tuber Oat Grass, 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
Habit: Graminoid
Flowers: Flower Color: near white, white
Size/Age/Growth
Size: 6-12" tall.
Habitat
Typically found in the intertidal zone at the water's edge at a mean distance from sea level of 53 meters (175 feet).[2]
Biome: Coastal.
Biology
Reproduction
Duration: Perennial
Growth
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
- Subspecies:
bulbosum
- Variety:
bulbosum
- Botanical name: - Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl subsp. bulbosum (Willd.) Schübl. & G. Martens
- Variety:
bulbosum
- Subspecies:
bulbosum
- Specific epithet:
elatius
- 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
(
Notes
Name
Status: Accepted Name
. Synonym: Arrhenatherum elatus
tuberosum. Latest taxonomic
scrutiny: March 15, 2000.
Place of publication
: Fl.
Wurtemberg 70. 1834
Name verified on 19-Jan-1996 by ARS Systematic Botanists. Last
updated: 02-Aug-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
- Davis, P. H., ed. 1965–1988. Flora of Turkey and the east Aegean islands. (F Turk) [mentions].
- Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening. (Dict Gard)
- Still, S. M. 1994. Manual of herbaceous ornamental plants, ed. 4. (Man HerbPl)
- Tutin, T. G. et al., eds. 1964–1980. Flora europaea. (F Eur)
- Wisskirchen, R. and Haeupler, H. (1998a): Standardliste der Farn- und Bl&uuml;tenpflanzen Deutschlands, Stuttgart: Ulmer
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
- Global Biodiversity Information Facility. Accessed September 25, 2006. http://www.gbif.org
- USDA, ARS, National Genetic Resources Program. Germplasm Resources Information Network - (GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. URL (April 25, 2008)
- USDA, NRCS. 2005. The PLANTS Database, Version 3.5 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Identifiers
- Catalogue of Life Accepted Name Code: ITS-185329
- GRIN Nomen Number: 404233
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 185329
- Natural Heritage Network Species Identifier: PMPOA0L012
- U.S.D.A. Plant Symbol: ARELT
- Zipcode Zoo Species Identifier: 20874
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]
- Standard Deviation = 286.100 based on 489 observations. Terrestrial altitude and ocean depth information for each observation from British Oceanographic Data Centre. [back]
