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

[GB]
Morphology General Habit
Perennial. Culms erect; 50-100 cm long. Culm-internodes brown; distally glabrous. Leaf-sheaths mostly shorter than adjacent culm internode; keeled; glabrous on surface. Ligule a ciliolate membrane. Leaf-blades 15-30 cm long; 3-5 mm wide. Leaf-blade venation indistinct. Leaf-blade surface glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate.
Morphology Reproductive morphology Inflorescences
Synflorescence compound; fasciculate; lax. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; enclosed. Spatheole ovate; 3-5 cm long; scarious; without tubercles; glabrous. Peduncle 1-2 cm long; glabrous. Racemes 1; single; cuneate; 2.5-3.5 cm long; bearing few fertile spikelets; bearing 2 fertile spikelets on each. Rhachis fragile at the nodes. Spikelets in pairs, or in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster, or 2 in the cluster. Pedicels oblong; tip oblique.
Sterile
Basal sterile spikelets well-developed; 4 in number; forming an involucre about the fertile; with normal internodes; subsessile; male; lanceolate; 15 mm long; larger than fertile. Basal sterile spikelet glumes herbaceous; glabrous; lower glume muticous. Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; 30 mm long; longer than fertile; separately deciduous. Companion sterile spikelet callus linear; truncate. 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 elliptic; subterete; 10 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; bearded; base pungent; attached obliquely. Basal sterile spikelets well-developed; 4 in number; forming an involucre about the fertile; with normal internodes; subsessile; male; lanceolate; 15 mm long; larger than fertile. Basal sterile spikelet glumes herbaceous; glabrous; lower glume muticous. Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; 30 mm long; longer than fertile; separately deciduous. Companion sterile spikelet callus linear; truncate. Companion sterile spikelet lemmas 2; enclosed by glumes.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; subterete; 10 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus cuneate; bearded; base pungent; attached obliquely.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 1 length of spikelet; coriaceous; without keels. Lower glume surface pubescent; hairy below. Lower glume hairs yellow. Lower glume apex obtuse. Upper glume oblong; coriaceous.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline. Fertile lemma linear; hyaline; without keel; 1 -veined. Lemma apex entire; awned; 1 -awned. Principal lemma awn apical; geniculate, or bigeniculate; 30-60 mm long overall; with twisted column. Column of lemma awn hispidulous. Palea absent or minute.
Morphology Reproductive morphology Flowers
Anthers 3; 5 mm long.
Distribution
Asia-temperate: China.
Reference
Andropogoneae. Chen & Zhuang 1996.

Native to:

China South-Central

Themeda yunnanensis S.L.Chen & T.D.Zhuang appears in other Kew resources:

First published in Bull. Bot. Res., Harbin 9(2): 58 (1989)

Accepted by

  • Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.
  • 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 2021. 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 2021. 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