Interesting Facts
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
Size/Age/Growth
Size: 24-36" tall.
Biology
Growth
Culture: Space 12-15" apart.
Sunlight: Sun Exposure: Partial shade to full shade.
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (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
- (Linnaeus) J. & C. Presl
- Variety:
bulbosum
- Cultivar:
Variegatum
- Botanical name: - Arrhenatherum elatius var. bulbosum 'Variegatum' (Linnaeus) J. & C. Presl
- Cultivar:
Variegatum
- Variety:
bulbosum
- Specific epithet:
elatius
- (Linnaeus) J. & C. Presl
- 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
An accepted name in the RHS Horticultural Database.
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
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- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
Notes
Contributors
- Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.
Identifiers
- Zipcode Zoo Species Identifier: 1800783
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]
