Skip to main content
This species is accepted, and its native range is Philippines to SW. Pacific.

[GB]
Morphology General Habit
Perennial; caespitose. Culms erect; robust; 150-400 cm long. Culm-internodes solid; distally pruinose, or glabrous. Leaf-sheaths keeled; glabrous on surface; outer margin glabrous, or hairy. Ligule a ciliolate membrane; truncate, or obtuse. Leaf-blades 30-100 cm long; 5-25 mm wide; stiff. Leaf-blade midrib widened. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade margins scabrous.
Morphology Reproductive morphology Inflorescences
Synflorescence compound; paniculate. Inflorescence composed of racemes; terminal and axillary; deciduous as a whole; subtended by a spatheole; enclosed. Spatheole lanceolate; 1-1.2 cm long; scarious; without tubercles; glabrous. Peduncle 0.1-0.2 cm long. Racemes 1; single; ovate; 1 cm long; bearing a triad of spikelets; bearing 1 fertile spikelets on each. Rhachis tough. Spikelets in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 2 in the cluster. Pedicels linear; 1-1.5 mm long.
Morphology Reproductive morphology Inflorescences Spikelets
Basal sterile spikelets well-developed; 4 in number; forming an involucre about the fertile; with normal internodes (between them); subsessile; deciduous with the fertile; male; lanceolate, or oblong; 6.5-8 mm long; equalling fertile. Basal sterile spikelet glumes tuberculate; hirsute; with tawny hairs; acuminate; lower glume muticous. Companion sterile spikelets well-developed; male; lanceolate; 4-5 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet callus indistinct. Companion sterile spikelet glumes tuberculate; hirsute; with tawny hairs. Companion sterile spikelet lemmas 2; enclosed by glumes; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; 6.5-7 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus oblong; bearded; base obtuse; attached obliquely. Spikelet callus hairs tawny.
Sterile
Basal sterile spikelets well-developed; 4 in number; forming an involucre about the fertile; with normal internodes (between them); subsessile; deciduous with the fertile; male; lanceolate, or oblong; 6.5-8 mm long; equalling fertile. Basal sterile spikelet glumes tuberculate; hirsute; with tawny hairs; acuminate; lower glume muticous. Companion sterile spikelets well-developed; male; lanceolate; 4-5 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet callus indistinct. Companion sterile spikelet glumes tuberculate; hirsute; with tawny hairs. Companion sterile spikelet lemmas 2; enclosed by glumes; muticous.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; compressed slightly; 6.5-7 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus oblong; bearded; base obtuse; attached obliquely. Spikelet callus hairs tawny.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 1 length of spikelet; coriaceous; dark brown; without keels; 5-7 -veined. Lower glume surface flat; pubescent. Lower glume hairs tawny. Lower glume apex acute. Upper glume oblong; coriaceous.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline. Fertile lemma lanceolate; hyaline; without keel; 1 -veined. Lemma apex entire; acute; muticous, or awned; 1 -awned. Principal lemma awn 0-10 mm long overall. Palea absent or minute.
Morphology Reproductive morphology Flowers
Anthers 3.
Distribution
Asia-tropical: Indo-China, Malesia, and Papuasia. Pacific: southwestern.
Reference
Andropogoneae. WDC 1996.

Native to:

Bismarck Archipelago, Maluku, New Caledonia, New Guinea, Philippines, Solomon Is., Vanuatu

Themeda gigantea (Cav.) Hack. ex Duthie appears in other Kew resources:

Date Reference Identified As Barcode Type Status
s.coll. [4002], Philippines K000911692

First published in Fodder Grasses N. India: 89 (1888)

Accepted by

  • Veldkamp, J.F. (2016). A revision of Themeda (Gramineae) in Malesia with a new species from Laos Blumea 61: 29-40.
  • Mostaph, M.K. & Uddin, S.B. (2013). Dictionary of plant names of Bangladesh, Vasc. Pl.: 1-434. Janokalyan Prokashani, Chittagong, Bangladesh.
  • 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.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.

Literature

Kew Backbone Distributions

  • Veldkamp, J.F. (2016). A revision of Themeda (Gramineae) in Malesia with a new species from Laos Blumea 61: 29-40.
  • Clayton, W.D. & Snow, N. (2010). A key to Pacific Grasses: 1-107. Kew Publishing, Royal Botanic Gardens, Kew.
  • Peekel, P.G. (1984). Flora of the Bismarck Archipelago for Naturalists: 1-638. Office of Forests, Division of Botany, Lae, Papua New Guinea.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
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 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