- Family:
- Poaceae Barnhart
- Genus:
- Schizachyrium Nees
Schizachyrium scoparium (Michx.) Nash

[GB]
- Morphology General Habit
- Perennial; caespitose. Rhizomes absent, or short. Culms 50-150 cm long. Lateral branches ample. Leaf-sheaths keeled; glabrous on surface to hirsute. Ligule an eciliate membrane; 1-3 mm long. Leaf-blades 15-30 cm long; 3-6 mm wide. Leaf-blade surface glabrous to hirsute. Leaf-blade apex acute.
- Morphology Reproductive morphology Inflorescences
- Synflorescence compound; linear. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; exserted. Spatheole linear; 4-6 cm long; herbaceous. Racemes 1; single; sinuous; 3-6 cm long. Rhachis fragile at the nodes; semiterete; ciliate on margins, or villous on margins. Rhachis internodes clavate. Rhachis internode tip cupuliform; with scarious rim. Spikelets ascending, or spreading; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels filiform; curved; ciliate, or villous.
- Sterile
- Companion sterile spikelets represented by single glumes, or well-developed; comprising 2 subequal glumes without lemmas, or containing empty lemmas, or male; lanceolate; dorsally compressed; 1.5-7 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; muticous, or awned; one glume awned; with 1.5-3 mm long awn. Companion sterile spikelet lemmas 2; enclosed by glumes.
- Morphology Reproductive morphology Inflorescences Spikelets
- Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pilose; base obtuse; inserted. Companion sterile spikelets represented by single glumes, or well-developed; comprising 2 subequal glumes without lemmas, or containing empty lemmas, or male; lanceolate; dorsally compressed; 1.5-7 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; muticous, or awned; one glume awned; with 1.5-3 mm long awn. Companion sterile spikelet lemmas 2; enclosed by glumes.
- Fertile
- Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 6-8 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pilose; base obtuse; inserted.
- Morphology Reproductive morphology Inflorescences Bracts Glume
- Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of spikelet; coriaceous; 2-keeled; keeled all along; keeled laterally; keeled obtusely. Lower glume intercarinal veins distinct; 3 in number. Lower glume surface flat, or concave. Upper glume lanceolate; membranous; 1-keeled.
- Morphology Reproductive morphology Flowers Florets
- Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline; 2 -veined. Fertile lemma oblong; hyaline; without keel; 1 -veined. Lemma apex lobed; 2 -fid; with lanceolate lobes; incised 0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 8-15 mm long overall; with twisted column. Column of lemma awn glabrous. Palea absent or minute.
- Distribution
- Asia-tropical: India. Pacific: north-central. North America: western Canada, eastern Canada, northwest USA, north-central USA, northeast USA, southwest USA, south-central USA, southeast USA, and Mexico.
- Reference
- Andropogoneae. Fl Pak 1993.
Native to:
Alabama, Alberta, Arkansas, British Columbia, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Nova Scotia, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
Introduced into:
Chile Central, Hawaii, Pakistan
- Andropogon divergens (Hack.) Andersson ex Hitchc.
- Andropogon flexilis Poir.
- Andropogon halei Alph.Wood
- Andropogon littoralis Nash
- Andropogon maderensis Swallen
- Andropogon neomexicanus Nash
- Andropogon praematurus Fernald
- Andropogon praematurus f. hirtivaginatus Fernald
- Andropogon preamaturus Fernald
- Andropogon purpurascens Muhl. ex Willd.
- Andropogon scoparius Michx.
- Andropogon scoparius subvar. caesius Hack.
- Andropogon scoparius f. calvescens Fernald
- Andropogon scoparius var. divergens Hack.
- Andropogon scoparius var. ducis Fernald & Griscom
- Andropogon scoparius subsp. euscoparius Hack. ex Beal
- Andropogon scoparius subvar. flexilis (Poir.) Hack.
- Andropogon scoparius var. frequens F.T.Hubb.
- Andropogon scoparius subsp. genuinus Hack.
- Andropogon scoparius var. genuinus Fernald & Griscom
- Andropogon scoparius var. glaucescens House
- Andropogon scoparius var. littoralis (Nash) Hitchc.
- Andropogon scoparius var. neomexicanus (Nash) Hitchc.
- Andropogon scoparius var. polycladus Scribn. & C.R.Ball
- Andropogon scoparius var. septentrionalis Fernald & Griscom
- Andropogon scoparius subvar. serpentinus Hack.
- Andropogon scoparius subvar. simplicior Hack.
- Andropogon scoparius var. villosissimus Kearney
- Andropogon scoparius var. virilis Shinners
- Pollinia scoparia (Michx.) Spreng.
- Schizachyrium acuminatum Nash
- Schizachyrium littorale (Nash) E.P.Bicknell
- Schizachyrium neomexicanum (Nash) Nash
- Schizachyrium praematurum (Fernald) C.F.Reed
- Schizachyrium praematurum f. hirtivaginatum (Fernald) C.F.Reed
- Schizachyrium scoparium f. calvescens (Fernald) C.F.Reed
- Schizachyrium scoparium subsp. divergens (Hack.) Gandhi & Smeins
- Schizachyrium scoparium var. divergens (Hack.) Gould
- Schizachyrium scoparium subvar. flexile (Poir.) Roberty
- Schizachyrium scoparium var. frequens (F.T.Hubb.) Gould
- Schizachyrium scoparium subsp. littorale (Nash) Gandhi & Smeins
- Schizachyrium scoparium var. littorale (Nash) Gould
- Schizachyrium scoparium subsp. neomexicanum (Nash) Gandhi & Smeins
- Schizachyrium scoparium f. villosissimum (Kearney) C.F.Reed
- Schizachyrium scoparium f. virile (Shinners) Gandhi & Smeins
- Schizachyrium scoparium var. virile (Shinners) Gould
- Schizachyrium villosissimum (Kearney) Nash
- Sorghum scoparium (Michx.) Kuntze
Schizachyrium scoparium (Michx.) Nash appears in other Kew resources:
Date | Reference | Identified As | Barcode | Type Status | Has image? |
---|---|---|---|---|---|
Fernald, M.L. [13248], Virginia | K000974985 | Unknown type material | Yes | ||
Fernald, M.L. [10092], Virginia | K000974984 | Unknown type material | Yes |
First published in J.K.Small, Fl. S.E. U.S.: 59 (1903)
Accepted by
- Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
- Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
- Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
- Cope, T.A. (1982). Flora of Pakistan 143: 1-678. Department of Botany, University of Karachi, Karachi.
- Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
- Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
- Powell, A.M. & Worthington, R.D. (2018). Flowering plants of Trans-Pecos Texas and ajacent areas: 1-1444. BRIT Press.
- Werier, D. (2017). Catalogue of the Vascular plants of New York state Memoirs of the Torrey Botanical Club 27: 1-542. New York Botanical Garden.
- Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.
Literature
Kew Backbone Distributions
- Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
- Dávila, P., Mejia-Saulés, M.T., Gómez-Sánchez, N., Valdés-Reyna, J., Ortíz, J.J., Morín, C., Castrejón, J. & Ocampo, A. (2006). Catálogo de las Gramíneas de México: 1-671. CONABIO, México city.
- Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
- Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.
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The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Names and Taxonomic Backbone
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© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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