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Agrostis stolonifera

(Carpet Bentgrass)

Overview

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Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Dutch:

Fioringras, Wit Struisgras

Common Names in English:

Carpet Bentgrass, Carpet Bent, Creeping Bent, Creeping Bent Grass, Creeping Bentgrass, Fiorin, Redtop, Redtop Bent, Redtop Bent, Seaside Bentgrass, Spreading Bent, Spreading Bentgrass, White Bent

Common Names in French:

Agrostide Rampante, Agrostide Stolonifère, Agrostis Rampant

Common Names in German:

Fioringras, Flecht-Straußgras, Flechtstraußgras, Weißes Straußgras

Common Names in Greek:

Agrostis

Common Names in Italian:

Capellini Comuni, Rcapellini Communi

Common Names in Russian:

Polevica Pobegoobrazujuščaja, Polevitsa Pobegoobrazujushchaia (Polevica Pobegoobrazujuaja), полевица побегообразующая

Common Names in Spanish:

Agróstide Común, Agróstide Estolonífera, Agróstide Rastrera, Agrostis Estolonífero, Chépica Alemana, Heno Gris

Common Names in Swedish:

Krypven

Common Names in Turkish:

Beyaz Ayrk çimi

Description

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Genus Agrostis

Annuals or perennials , tufted or sometimes with rhizomes or stolons. Leaf blades linear to filiform or setaceous , flat or rolled; ligule membranous. Inflorescence a panicle, open to contracted or spikelike. Spikelets with 1 floret, small, often gaping , without rachilla extension ; rachilla disarticulating above glumes ; glumes persistent , longer than floret, subequal or lower a little longer, membranous, 1-veined, apex subacute to acuminate; floret callus glabrous or shortly pilose ; lemma oblong to elliptic , thinner than glumes, often hyaline , 5-veined, rounded on back, glabrous or hairy , lateral veins sometimes excurrent, awnless or awned from back, apex truncate or toothed ; awn usually geniculate , sometimes weakly so or straight when short; palea shorter than lemma, sometimes very small. Stamens 3. Caryopsis oblong, sulcate on ventral side.

About 200 species:temperate and cold regions of the N hemisphere, also on tropical mountains; 25 species (eight endemic) in China.

The genus includes some good fodder and lawn plants .

Some species are superficially very similar, and correct identification depends on careful observation of spikelet details. It is also important to collect the basal parts to show the presence or absence of rhizomes and stolons. When the palea is long it is normally obvious, but small paleas usually adhere to the mature caryopsis and may appear to be absent. The presence or absence of awns is useful for identification, but awned species may have awnless variants , and vice versa, and the position of the awn on the lemma back can also be rather variable.[1]

Physical Description

Species Agrostis stolonifera

Perennial , tufted , stoloniferous ; stolons slender, leafy, widely spreading , developing after anthesis . Culms erect or geniculate and rooting at base , 30-50(-100) cm tall. Leaf sheaths smooth ; leaf blades linear , flat or inrolled , 4-10 cm × 2-5 mm, scaberulous, apex acute to acuminate; ligule on non-flowering shoots 2-3.5 mm, rounded to truncate , often lacerate . Panicle narrow, linear to lanceolate in outline, 5-20 cm, open only at anthesis, otherwise contracted , often dense; branches several per node, closely divided , ascending , scabrous , main branch at a node often bare in lower 1/3, but accompanied by shorter branches bearing spikelets to base. Spikelets 1.8-3 mm, yellowish green; glumes lanceolate, subequal or lower glume slightly longer , lower glume scabrous along keel distally, upper glume often smooth, apex acute; callus minutely hairy ; lemma 3/4 as long to subequaling spikelet, usually awnless, apex rounded; palea 1/2-3/4 length of lemma. Anthers 0.8-1.5 mm. Fl. Aug. This is a widespread and polymorphic species, adventive in many temperate countries. [source]

Habit: Graminoid

Flowers: Bloom Period: June, July, August. • Flower Color: green, magenta

Size/Age/Growth

Size: 24-36" tall.

Habitat

Moist places along roadsides[2].

Typically found at an altitude of 0 to 3,180 meters (0 to 10,433 feet).[3]

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Space 36-48" apart.

Sunlight: Sun Exposure: Full Sun .

Temperature: Cold Hardiness: 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b. (map)

Taxonomy

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Synonyms

Agrostis alba L. var. stolonifera Scribn. • Agrostis alba var. palustris (Huds.) Pers. • Agrostis alba var. stolonifera (L.) Sm. • Agrostis capillaris L. var. stolonifera (L.) Druce • Agrostis maritima Lam. • Agrostis palustris Huds. • Agrostis palustris Huds. var. stolonifera (L.) Druce • Agrostis palustris Hudson; A. Sibirica V. A. Petrov. • Agrostis polymorpha Huds. var. stolonifera (L.) Huds. • Agrostis stolonifera var. compacta Hartman • Agrostis stolonifera var. palustris (Huds.) Farw. • Agrostis tenuis Sibth. var. stolonifera (L.) Podp. • Agrostis vulgaris With. var. stolonifera (L.) G. Mey. • Decandolia stolonifera (L.) Bastard • Milium stoloniferum (L.) Lag.

Notes

Publishing author : L. Publication : Species Plantarum 1753 (1 May 1753)

Similar Species

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Members of the genus Agrostis

ZipcodeZoo has pages for 51 species, subspecies, varieties, forms, and cultivars in this genus:

A. aequivalvis (Arctic Bentgrass) · A. alascana (Alaska Bentgrass) · A. alba var. major (Black Bent) · A. avenacea (Pacific Bentgrass) · A. blasdalei (Blasdale Bentgrass) · A. blasdalei var. blasdalei (Blasdale Bentgrass) · A. canina (Brown Bentgrass) · A. canina canina (Velvet Bent Grass) · A. capillaris (Brown-Top Bent) · A. capillaris var. aristata (Colonial Bent) · A. capillaris 'Jorvik' (Common Bent 'jorvik') · A. castellana (Bentgrass) · A. clavata (Clavate Bentgrass) · A. clivicola (Coastal Bluff Bentgrass) · A. clivicola var. clivicola (Coastal Bluff Bent Grass) · A. clivicola var. punta-reyesensis (Point Reyes Bentgrass) · A. densiflora (California Bentgrass) · A. elliottiana (Elliot Bentgrass) · A. exarata (Longtongue Bentgrass) · A. exarata var. exarata (Spike Bentgrass) · A. gigantea (Black Bent) · A. hallii (Hall's Bentgrass) · A. hallii var. hallii (Hall's Bentgrass) · A. hendersonii (Henderson's Bentgrass) · A. hooveri (Hoover Bentgrass) · A. howellii (Howell's Bentgrass) · A. humilis (Alpine Bentgrass) · A. hyemalis (Winter Bentgrass) · A. idahoensis (Idaho Bentgrass) · A. idahoensis var. idahoensis (Idaho Bentgrass) · A. longiligula var. longiligula (Longtongue Bentgrass) · A. mertensii (Arctic Bentgrass) · A. microphylla (Small-Leaf Bentgrass) · A. microphylla var. microphylla (Smallleaf Bentgrass) · A. muelleriana (He'u-Pueo) · A. nebulosa (Bentgrass) · A. oregonensis (Oregon Bentgrass) · A. pallens (Leafy Bentgrass) · A. perennans (Autumm Bentgrass) · A. pringlei (Pringle's Bentgrass) · A. rossiae (Mountain Bentgrass) · A. sandwicensis (Hawai'i Bentgrass) · A. scabra (Hairgrass) · A. scabra var. scabra (Rough Bentgrass) · A. stolonifera (Carpet Bentgrass) · A. stolonifera palustris (Creeping Bent Grass) · A. stolonifera var. stolonifera (Creeping Bentgrass) · A. tandilensis (Kennedy's Bentgrass) · A. variabilis (Mountain Bentgrass) · A. vinealis (Brown Bentgrass) · A. vinealis vinealis (Brown Bentgrass)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 12, 2007:

Identifiers

Footnotes

  1. Sheng-lian Lu & Sylvia M. Phillips "Agrostis". in Flora of China Vol. 22 Page 317, 340, 348, 349, 351, 353, 358, 359, 361. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Agrostis stolonifera". in Flora of China Vol. 22 Page 340, 342, 343, 348. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 199.850 meters (655.676 feet), Standard Deviation = 297.950 based on 20,000 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012