Difference between revisions of "Themeda triandra"

Forssk.
Common names: Rooigras
Treatment appears in FNA Volume 25. Treatment on page 684.
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|distribution=Tex.
 
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|discussion=<p><i>Themeda triandra</i> is native to India, Korea, China, and Japan. Many infraspecific taxa have been described in <i>T. triandra</i> and in T. australis, a species that is sometimes included in <i>T. triandra</i>. <i>Themeda triandra</i> subsp. japonica (Willd.) T. Koyama is sold as an ornamental in the Flora region but, in the absence of a treatment that covers both species throughout their range, it is impossible to state how it differs from other members of the complex.</p>
+
|discussion=<p>Themeda triandra is native to India, Korea, China, and Japan. Many infraspecific taxa have been described in T. triandra and in T. australis, a species that is sometimes included in T. triandra. Themeda triandra subsp. japonica (Willd.) T. Koyama is sold as an ornamental in the Flora region but, in the absence of a treatment that covers both species throughout their range, it is impossible to state how it differs from other members of the complex.</p>
 
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|basionyms=
 
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|family=Poaceae
 
|family=Poaceae
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|illustrator=Linda A. Vorobik and Hana Pazdírková
 
|distribution=Tex.
 
|distribution=Tex.
 
|reference=None
 
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|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_1636.xml
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|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_1636.xml
 
|subfamily=Poaceae subfam. Panicoideae
 
|subfamily=Poaceae subfam. Panicoideae
 
|tribe=Poaceae tribe Andropogoneae
 
|tribe=Poaceae tribe Andropogoneae

Revision as of 16:16, 30 October 2019

Plants perennial. Culms 30-300 cm, erect. Blades to 30 cm long, 1-8 mm wide. False panicles 20-50 cm; sheaths subtending the rame clusters 1.5-3.5 cm, reddish, glabrous or pilose, hairs papillose-based; rames 15-20 mm, with 1 heterogamous spikelet pair. Homogamous spikelets 6-14 mm, glabrous or with papillose-based hairs. Sessile heterogamous spikelets 6-14 mm; calluses 2-4 mm, with rufous hairs; lower glumes mostly smooth, glabrous, apices appressed-pubescent; awns 2.5-7 cm; pedicellate spikelets 6-14 mm, glabrous or with papillose-based hairs. 2n = 20, 21, 22, 24, 40, 60, 70, 80.

Discussion

Themeda triandra is native to India, Korea, China, and Japan. Many infraspecific taxa have been described in T. triandra and in T. australis, a species that is sometimes included in T. triandra. Themeda triandra subsp. japonica (Willd.) T. Koyama is sold as an ornamental in the Flora region but, in the absence of a treatment that covers both species throughout their range, it is impossible to state how it differs from other members of the complex.

Selected References

None.

Lower Taxa

None.