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Briza maxima

(Great Quaking Grass)

Interesting Facts

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Common Names

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Common Names in English:

Big Quaking Grass, Big Quakinggrass, Great Quaking Grass, Large Quaking Grass, Quaking Grass

Description

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Family Poaceae

Annual or perennial herbs, or tall woody bamboos . Flowering stems (culms ) jointed , internodes hollow or solid; branches arising singly from nodes and subtended by a leaf sheath and 2-keeled prophyll, often fascicled in bamboos. Leaves arranged alternately in 2 ranks , differentiated into sheath, blade , and an adaxial erect appendage at sheath/blade junction (ligule) ; leaf sheath surrounding and supporting culm-internode, split to base or infrequently tubular with partially or completely fused margins , modified with reduced blade in bamboos (culm sheaths) ; leaf blades divergent, usually long, narrow and flat, but varying from inrolled and filiform to ovate , veins parallel, sometimes with cross-connecting veinlets (especially in bamboos) ; ligule membranous or a line of hairs . Inflorescence terminal or axillary , an open, contracted , or spikelike panicle, or composed of lax to spikelike racemes arranged along an elongate central axis, or digitate, paired , or occasionally solitary; axillary inflorescences often many, subtended by spatheoles (specialized bladeless leaf sheaths) and gathered into a leafy compound panicle; spikelets often aggregated into complex clusters in bamboos. Spikelets composed of distichous bracts arranged along a slender axis (rachilla) ; typically 2 lowest bracts (glumes ) empty, subtending 1 to many florets ; glumes often poorly differentiated from accompanying bracts in bamboos. Florets composed of 2 opposing bracts enclosing a single small flower, outer bract (lemma) clasping the more delicate, usually 2-keeled inner bract (palea) ; base of floret often with thickened prolongation articulated with rachilla (callus) ; lemma often with apical or dorsal bristle (awn ), glumes also sometimes awned . Flowers bisexual or unisexual ; lodicules (small scales representing perianth) 2, rarely 3 or absent, 3 to many in bamboos, hyaline or fleshy ; stamens 3 rarely 1, 2, 6, or more in some bamboos, hypogynous, filaments capillary , anthers versatile; ovary 1-celled, styles (1 or) 2(rarely 3), free or united at base, topped by feathery stigmas, exserted from sides or apex of floret. Fruit normally a dry indehiscent caryopsis with thin pericarp firmly adherent to seed, pericarp rarely free, fleshy in some bamboos; embryo small or large; hilum punctate to linear .

About 700 genera and 11,000 species: widely distributed in all regions of the world.[1]

Physical Description

Species Briza maxima

Annual . Culms solitary or loosely tufted , erect or geniculate at base , 20-60 cm tall. Leaf sheaths smooth , glabrous ; leaf blades thin, 4-20 cm × 3-8 mm, margins scabrid , otherwise smooth, apex acute; ligule 2-5 mm, obtuse . Panicle loose , nodding , 7-10 cm, sparingly branched with few pendant spikelets ; branches inserted singly, scaberulous, sometimes with only 1 spikelet; pedicels hairlike, shorter or longer than spikelet, drooping . Spikelets ovate , ca. 1.2 × 1 cm, tinged reddish brown, florets 7-20; lower glume 5-6 mm, 5-veined, upper glume 6-7 mm, 7-9-veined, margins purple or tawny , apex broadly rounded ; lemmas very broadly ovate, wider than long, lowest 7-8 mm, 7-9-veined, glabrous or appressed-pubescent; palea obovate , 1/2-2/3 length of lemma, back glabrous, keels pubescent . Anthers ca. 2 mm. 2n = 14. [source]

Habit: GraminoidGrowth Form: Multiple Stem • Shape and Orientation: Erect

Flowers: Bloom Period: SpringFlower Color: pale green • Flower Conspicuous: No

Seeds: Seed per Pound: 80000 • Seed Spread Rate: Moderate • Seedling Vigor: High • Fruit/Seed Abundance: Medium • Fruit/Seed Color: Brown • Fruit/Seed Conspicuous: Yes • Cold Stratification Required: No

Foliage: Foliage Color: Green • Foliage Porosity Summer: Porous • Foliage Porosity Winter: Porous • Foliage Texture: Fine • Fall Conspicuous: Yes • Leaf Retention: No

Size/Age/Growth

Active Growth Period: Fall , Winter and SpringGrowth Rate: Rapid • Mature Height (feet): 2.0 • Size: 24-36" tall. • Vegetative Spread Rate: None • Lifespan: Lifespan

Habitat

Gardens[2].

Biology

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Reproduction

Duration: AnnualCoppice Potential: No • Progagated by Bulbs: No • Propagated by Bare Root: No • Propagated by Container: No • Propagated by Corms: No • Propagated by Cuttings: No • Propagated by Seed: Yes • Propagated by Sod: No • Propagated by Sprigs: No • Propagated by Tubers: No • Fruit/Seed Period Begin: SpringFruit/Seed Period End: SpringFruit/Seed Persistence: Yes

Growth

Culture: Space 6-9" apart.

Soil: Adapted to Medium Textured: Adapted to Medium Textured Soils • Adapted to Coarse Textured Soils: No • Anaerobic Tolerance: None • Salinity Tolerance: Low • CaCO3 Tolerance: Medium • Minimum pH: 5.8 • Maximum pH: 7.0 • Fertility Requirement: Low

Sunlight: Sun Exposure: Full Sun . • Shade Tolerance: Intolerant

Moisture: Drought Tolerance: Medium • Minimum Precipitation: 12 • Maximum Precipitation: 40 • Moisture Use: Medium

Temperature: Minimum Temperature (F): 47 • Minimum Frost Free Days: 90 • Cold Hardiness: 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b. (map)

Taxonomy

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Unambiguous Synonyms

  1. Macrobriza maxima (L.) Tzvelev

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Place of publication : Sp. pl. 1:70. 1753

Name verified on 06-May-1992 by ARS Systematic Botanists. Last updated: 19-Apr-2000

Similar Species

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Members of the genus Briza

ZipcodeZoo has pages for 110 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

B. ambigua · B. anceps · B. aspera · B. australis · B. barbata · B. bidentata · B. bipinnata · B. brachychaeta · B. brachychaete · B. brasiliensis · B. brizodes · B. brizoides · B. calotheca · B. canadensis · B. capensis · B. caroliniana · B. clusii · B. cynosuroides · B. dalmatica · B. deltoidea · B. disticha · B. dura · B. elatior · B. elegans · B. eragrostis · B. erecta · B. flava · B. fusca · B. geniculata · B. glomerata · B. gracilescens · B. gracilis · B. grandis · B. hackelii · B. humilis (Spiked Quaking Grass) · B. imbricata · B. itatiaiae · B. juergensii · B. lamarckiana · B. lamarkiana · B. lilloi · B. lindmani · B. lindmanii · B. lutescens · B. macrostachya · B. major · B. mandoniana · B. mandoniana var. vallegrandensis · B. marcowiczii · B. maxima (Large Quaking Grass) · B. maxima 'Rubra' · B. mazima · B. media (Perennial Quaking Grass) · B. media Elatior Group · B. media 'Limouzi' (Perennial Quakinggrass) · B. media 'Luz' · B. media media (Perennial Quaking Grass) · B. media 'Russells' · B. megastachya · B. microclada · B. microstachya · B. minima · B. minor (Little Quaking Grass) · B. monandra · B. monspessulana · B. montana · B. mucronata · B. multiflora · B. neesii · B. nigra · B. nigricans · B. oblonga · B. paleapilifera · B. paleapiliferum · B. parodiana · B. parodianum · B. patula · B. pauciflora · B. pilosa · B. poa · B. poaeformis · B. poaemorpha · B. portenschlagii · B. pulchella · B. purpurascens · B. reniformis · B. rotundata · B. rubella · B. rubens · B. rubra · B. rufa · B. sacra · B. scabra · B. sellowii · B. serotina · B. spicata · B. spicigera · B. stricta · B. subaristata · B. subaristata var. interrupta

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 15, 2007:

Identifiers

Footnotes

  1. Shou-liang Chen, De-Zhu Li, Guanghua Zhu, Zhenlan Wu, Sheng-lian Lu, Liang Liu, Zheng-ping Wang, Bi-xing Sun, Zheng-de Zhu, Nianhe Xia, Liang-zhi Jia, Zhenhua Guo, Wenli Chen, Xiang Chen, Yang Guangyao, Sylvia M. Phillips, Chris Stapleton, Robert J. Soreng, Susan G. Aiken, Nikolai N. Tzvelev, Paul M. Peterson, Stephen A. Renvoize, Marina V. Olonova & Klaus Ammann "Poaceae". in Flora of China Vol. 22. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Briza maxima". in Flora of China Vol. 22 Page 256, 257. Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 7/1/2009