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Bromus inermis

(Awnless Brome)

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 Chinese:

Wu Mang Que Mai

Common Names in Danish:

Stakløs Hejre

Common Names in Dutch:

Kweekdravik

Common Names in English:

Awnless Brome, Hungarian Brome, Smooth Brome, Smooth Bromegrass

Common Names in Finnish:

Idänkattara, Rehukattara, Vihneetön Kattara

Common Names in French:

Brome De Hongrie, Brome Inerme, Brome Sans Arête

Common Names in German:

Grannenlose Trespe (Switzerland), Wehrlose Trespe

Common Names in Hungarian:

àrva Rozsnok, Magyar Roz Nok

Common Names in Italian:

Bromo Inerme, Forasacco Spuntato

Common Names in Japanese:

Ko Suzume No Chahiki

Common Names in Norwegian:

Bladfaks

Common Names in Polish:

Stokosa Bezostna

Common Names in Portuguese:

Bromo-Liso, Capim-Cevadinha

Common Names in Russian:

(Koster Bezostyj)

Common Names in Spanish:

Bromo Inerme, Bromo Suave (Mexico), Cebadille Perenne (Argentina)

Common Names in Swedish:

Foderlosta

Description

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Genus Bromus

Annuals or perennials . Culms erect , tufted or with rhizomes. Leaf sheaths closed ; leaf blades linear , usually flat; ligules membranous. Panicles spreading or contracted , branches scabrid or pubescent , elongated or arched. Spikelets large, with 3 to many florets , upper florets often sterile ; rachilla disarticulating above glumes and between florets, scabrid or shortly hairy ; glumes unequal or subequal , shorter than spikelet, lanceolate or nearly ovate , (1-) 5-7-veined, apex acute or long acuminate or aristiform ; floret callus glabrous or both sides thinly hairy; lemmas rounded on back or compressed to keel, 5-9(-11) -veined, herbaceous or nearly leathery, margins often membranous, apex entire or 2-toothed; awn terminal or arising from lemma between teeth slightly under apex, rarely awnless or 3-awned; palea narrow, usually shorter than lemma, keels ciliate or scabrid. Lodicules 2. Stamens 3. Ovary apex with appendage ; styles 2, arising from lower front of appendage. Caryopsis oblong , apex hairy, adaxial surface sulcate . Chromosomes large, x = 7, 2n = 14, 28, 42, 56, 70.

About 150 species: temperate regions , mainly in the N hemisphere, also on mountains in the tropics; 55 species (eight endemic, at least three introduced ) in China.[1]

Physical Description

Species Bromus inermis

Perennial , with spreading rhizomes. Culms loosely tufted , erect , 50-120 cm tall, glabrous or retrorsely hairy below nodes. Leaf sheaths glabrous or shortly hairy; leaf blades flat, 20-30 cm × 4-8 mm, both surfaces and margins scabrid , glabrous or margins sparsely ciliate , apex acuminate, ligule 1-2 mm. Panicle dense at first, spreading after anthesis , 10-20 cm; branches 3-5 per node, up to 10 cm, scabrid, each bearing 2-6 spikelets . Spikelets 15-25 mm, florets 6-12; rachilla internodes 2-3 mm, spinulose ; glumes lanceolate, margins membranous, lower glume 4-7 mm, 1-veined, upper glume 6-10 mm, 3-veined; lemmas oblong-lanceolate,8-12 mm, 5-7-veined, glabrous, base scabrid, apex obtuse or emarginate ; awn up to 3-4 mm, or awnless; palea shorter than lemma, keels ciliate. Anthers 3-4 mm. Fl. and fr. Jul-Sep. 2n = 14, 28, 56. [source]

Habitat

Gullies on slopes , roadsides, river banks, dominant species of mountain meadows; 1000-3500 m [2].

Typically found at an altitude of 0 to 4,557 meters (0 to 14,951 feet).[3]

Taxonomy

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Synonyms

Bromopsis inermis (Leysser) Holub • Bromus pskemensis Pavlov • Zerna inermis (Leysser) Lindman.

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Bromus

ZipcodeZoo has pages for 88 species, subspecies, varieties, forms, and cultivars in this genus:

B. aleutensis (Aleutian Brome) · B. alopecuros (Roadside Brome) · B. alopecuros caroli-henrici (Weedy Brome) · B. anomalus (Nodding Bromegrass) · B. arenarius (Australian Brome) · B. arizonicus (Arizona Brome) · B. arvensis (Field Brome) · B. benekkenii (Brome) · B. berterianus (Chilean Brome) · B. biebersteinii (Meadow Brome) · B. briziformis (Rattlesnake Brome) · B. carinatus (California Brome) · B. catharticus (Prairie Grass) · B. ciliatus (Canadian Brome) · B. ciliatus var. ciliatus (Fringed Brome) · B. ciliatus var. richardsonii (Fringed Brome) · B. commutatus (Hairy Brome) · B. danthoniae (Oat Brome) · B. diandrus (Great Brome) · B. erectus (Erect Brome) · B. erectus erectus (Upright Brome) · B. frondosus (Weeping Brome) · B. grandis (Tall Brome) · B. grossus (Whiskered Brome) · B. hordaceus (Soft Chess) · B. hordeaceus (Soft Brome) · B. hordeaceus hordeaceus (Soft Brome) · B. hordeaceus molliformis (Soft Brome) · B. hordeaceus thominei (Soft Brome) · B. hordeaceus subsp. hordeaceus (Downy Brome) · B. hordeaceus subsp. molliformis (Soft Brome) · B. hordeaceus subsp. thominei (Soft Brome) · B. inermis (Awnless Brome) · B. inermis inermis (Awnless Brome) · B. inermis inermis var. inermis (Smooth Brome) · B. inermis pumpellianus (Pumpelly's Brome) · B. inermis pumpellianus var. pumpellianus (Pumpelly's Brome) · B. inermis var. arcticus (Awnless Brome) · B. inermis var. inermis (Smooth Brome) · B. inermis subsp. pumpellianus (Pumpelly's Brome) · B. inermis 'Skinner's Gold' (Skinner's Gold Smooth Brome) · B. japonicus (Japanese Brome) · B. kalmii (Arctic Brome) · B. laevipes (Chinook Brome) · B. lanatipes (Woolly Brome) · B. lanceolatus (Mediterranean Brome) · B. latiglumis (Broad-Glumed Brome) · B. lepidus (Slender Soft Brome) · B. luzonensis (Hoary Brome) · B. madritensis (Compact Brome) · B. madritensis madritensis (Compact Brome) · B. mango (Mango Brome) · B. marginatus (Mountain Brome) · B. marginatus var. marginatus (Large Mountain Brome) · B. maritimus (Seaside Brome) · B. mollis non (Soft Chess) · B. mucroglumis (Arizona Brome) · B. nottowayanus (Nottoway Brome Grass) · B. orcuttianus (Orcutt Brome) · B. orcuttianus var. orcuttianus (Orcutt's Brome) · B. pacificus (Pacific Brome) · B. polyanthus (Basin Brome) · B. polyanthus var. paniculatus (Great Basin Brome) · B. polyanthus var. polyanthus (Great Basin Brome) · B. porteri (Nodding Brome) · B. pseudolaevipes (Coast Range Brome) · B. pubescens (Hairy Wood Brome Grass) · B. racemosus (Bald Brome) · B. ramosus (Bald Brome) · B. ramosus benekenii (Hairy Brome) · B. ramosus ramosus (Hairy Brome) · B. richardsonii var. richardsonii (Richardson´s Brome) · B. rigidus (Ripgut Brome) · B. riparius (Meadow Brome) · B. rubens (Foxtail Brome) · B. scoparius (Broom Brome) · B. secalinus (Bromegrass) · B. sitchensis (Alaska Brome) · B. sitchensis var. sitchensis (Sitka Brome) · B. squarrosus (Corn Brome) · B. squarrosus squarrosus (Corn Brome) · B. stamineus (Roadside Brome) · B. sterilis (Barren Bromegrass) · B. suksdorfii (Suksdorf's Brome) · B. tectorum (Cheat Grass) · B. tectorum var. tectorum (Cheatgrass) · B. texensis (Texas Brome) · B. vulgaris (Columbia Brome)

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. Liang Liu, Guanghua Zhu & Klaus Ammann "Bromus". in Flora of China Vol. 22 Page 370, 371. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Bromus inermis". in Flora of China Vol. 22 Page 372, 375, 376. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 291.970 meters (957.907 feet), Standard Deviation = 393.270 based on 8,919 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/16/2012