Family:
Poaceae Barnhart
Genus:
Psathyrostachys Nevski ex Roshev.

Psathyrostachys juncea (Fisch.) Nevski

This species is accepted, and its native range is E. Europe to Mongolia and Afghanistan.

[GB]
Morphology General Habit
Perennial; caespitose. Butt sheaths grey, or light brown; glabrous. Culms 20-110 cm long; 2-4 -noded. Culm-internodes distally glabrous. Leaf-sheath oral hairs lacking. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 0.2-0.3 mm long. Leaf-blades flat, or involute; 6-30 cm long; 7-18 mm wide; glaucous, or grey-green. Leaf-blade surface scabrous; rough abaxially, or on both sides; glabrous. Leaf-blade margins scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Peduncle pubescent above. Racemes 1; single; bilateral; 4.5-12.5 cm long; 5-12 mm wide. Rhachis fragile at the nodes; pubescent on surface; ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes cuneate; 3.7-6 mm long; falling with spikelet above. Spikelets in threes. Fertile spikelets sessile; 3 in the cluster; subequal.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 6.1-9.4 mm long; 1.4-1.8 mm wide; falling entire; deciduous with accessory branch structures.
Fertile
Spikelets comprising 1-3 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 6.1-9.4 mm long; 1.4-1.8 mm wide; falling entire; deciduous with accessory branch structures.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes collateral; similar; exceeding apex of florets; gaping. Lower glume subulate; 4.5-9.4 mm long; 1 length of upper glume. Lower glume surface scabrous; glabrous to pubescent; hairy generally, or below. Lower glume hairs 0.2-0.5 mm long. Upper glume subulate; 4.5-9.4 mm long. Upper glume surface scabrous; glabrous to puberulous; hairy generally, or below. Upper glume hairs 0.2-0.5 mm long.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 6.1-9.4 mm long; coriaceous; without keel; 7 -veined. Lemma surface glabrous to pubescent; hairy below. Lemma hairs 0.1-0.5 mm long. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 2-3 mm long overall. Palea coriaceous. Rhachilla extension 3.2-6.2 mm long.
Morphology Reproductive morphology Flowers
Anthers 3.8-5.1 mm long. Ovary pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 4.3-5 mm long. Hilum linear.
Distribution
Europe: eastern. Asia-temperate: Siberia, Soviet Middle Asia, western Asia, China, and Mongolia. South America: western South America.
Reference
Triticeae. Baden 1992.

Native to:

Afghanistan, Altay, Central European Rus, China North-Central, East European Russia, Inner Mongolia, Irkutsk, Kazakhstan, Kirgizstan, Krasnoyarsk, Mongolia, South European Russi, Tadzhikistan, Tuva, Uzbekistan, West Siberia, Xinjiang, Yakutskiya

Introduced into:

Alaska, Alberta, Arizona, Bolivia, Colorado, Italy, Manitoba, Minnesota, Montana, Nebraska, New Mexico, North Dakota, Saskatchewan, South Dakota, Texas, Utah, Washington, Wyoming, Yukon

Psathyrostachys juncea (Fisch.) Nevski appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 1989 s.coll. [s.n.], Russian Federation K000457820 No
Jan 1, 1989 s.coll. [s.n.] K000457821 No
Jan 1, 1989 Karelin, G.S. [529], Kazakhstan K000457829 isolectotype Yes
Jan 1, 1989 Maljczev, N. [5342], Russian Federation K000457819 No
Jan 1, 1989 s.coll. [3750], Kazakhstan K000457823 No
Jan 1, 1989 Karelin, G.S. [529], Kazakhstan K000457828 isolectotype Yes
Jan 1, 1989 Schrenck, A.G. von. [s.n.] K000950536 Yes
Androssov, N. [3009], Kazakhstan K000457822 No
Dewey, D.R. [531826], China K000457830 No
Fefissow, L. [s.n.] K000457825 No
Renvoize, S.A. [5208], Bolivia K000457831 No
Smirnov, N.A. [s.n.], Central European Russia K000457826 No
Kuznitzov, N.J. [692], Altay K000457827 No
s.coll. [s.n.], Kazakhstan K000457824 No
Schrenck, A.G. von. [s.n.], Xinjiang K000950534 Yes
Bunge, A. [s.n.] K000950535 Yes

First published in V.L.Komarov (ed.), Fl. URSS 2: 714 (1934)

Accepted by

  • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Engelmaier, P. & Wilhalm, T. (2018). Alien grasses (Poaceae) in the flora of the Eastern Alps Neilreichia 9: 177-245.
  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas) 2: 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
  • Nowak, A. & Nobis, M. (eds.) (2020). Illustrated Flora of Tajikistan and adjacent areas 2: 367-766. PAN, Polish academy of sciences.
  • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

Literature

Kew Backbone Distributions

  • Bor, N.L. (1970). Flora Iranica 70: 1-573. Naturhistorisches Museums Wien.
  • Engelmaier, P. & Wilhalm, T. (2018). Alien grasses (Poaceae) in the flora of the Eastern Alps Neilreichia 9: 177-245.
  • Fedorov, A.A. (ed.) (1999). Flora of Russia. The European part and bordering regions 1: 1-546. A.A. Balkema, Rotterdam, Broekfield.
  • Flora of North America Editorial Committee (2007). Flora of North America North of Mexico 24: 1-908. Oxford University Press, New York, Oxford.
  • Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas) 2: 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
  • Malyschev, L.I. & Peschkova, G.A. (eds.) (2001). Flora of Siberia 2: 1-362. Scientific Publishers, Inc., Enfield, Plymouth.
  • Merkodovich, N.A. (ed.) (1941). Flora Uzbekistana 1: 1-566. Izd-va Akademii nauk Uzbekskoi SSR, Tashkent.
  • Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
  • Ri?abinina, Z.N. & Kni?azev, M.S. (2009). Opredelitel sosudistykh rastenii Orenburgskoi oblasti: 1-757. Moskva: KMK.
  • Roshevitz, R.J. & al. (eds.) (1950). Flora Kirgizskoi SSR 2: 1-315. Frunze : Izd-vo KirgizFAN SSSR.
  • Tutin, T.G. & al. (eds.) (1980). Flora Europaea 5: 1-452. Cambridge University Press.
  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

  • GrassBase - The Online World Grass Flora

    http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    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

  • Kew Names and Taxonomic Backbone

    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 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0