Family:
Poaceae Barnhart
Genus:
Calamagrostis Adans.

Calamagrostis moupinensis Franch.

This species is accepted, and its native range is China (Sichuan).

[GB]
Morphology General Habit
Perennial; caespitose; clumped loosely. Rhizomes short. Culms erect; 40-50 cm long; 2-3 mm diam.; 3-4 -noded. Leaf-sheaths glabrous on surface, or pubescent; with reflexed hairs. Ligule an eciliate membrane; 0.5 mm long; truncate. Leaf-blades flat, or involute; 10-25 cm long; 2-6 mm wide. Leaf-blade surface scabrous; rough on both sides.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; embraced at base by subtending leaf. Panicle contracted; linear; 8-14 cm long; 1.5-3 cm wide. Primary panicle branches 2-5 -nate. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 3 mm long; 1 length of lemma.
Fertile
Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 3 mm long; 1 length of lemma.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny. Lower glume lanceolate; 3.5-4 mm long; 1 length of upper glume; membranous; light green, or purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous. Lower glume apex acute. Upper glume lanceolate; 3.5-4 mm long; 1.2-1.5 length of adjacent fertile lemma; membranous; light green, or purple; 1-keeled; 3 -veined. Upper glume surface scabrous. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 3 mm long; hyaline; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical, or from a sinus; curved; 5-6 mm long overall; clearly exserted from spikelet. Palea 0.66 length of lemma; hyaline. Rhachilla extension 0.5 mm long; villous; with 2-3 mm long hairs.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 1.2 mm long.
Distribution
Asia-temperate: China.
Reference
Aveneae. Fl China 2003.

Native to:

China South-Central

Calamagrostis moupinensis Franch. appears in other Kew resources:

First published in Nouv. Arch. Mus. Hist. Nat., sér. 2, 10: 106 (1887 publ. 1888)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • 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

  • 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