Difference between revisions of "Pennisetum pedicellatum"

Trin.
Common names: Hairy fountaingrass
Introduced
Synonyms: Pennisetum pedicellatum subsp. unispiculum Brunken
Treatment appears in FNA Volume 25.
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|publications=
 
|publications=
 
|common_names=Hairy fountaingrass
 
|common_names=Hairy fountaingrass
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|special_status={{Treatment/ID/Special_status
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|code=I
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|label=Introduced
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}}
 
|basionyms=
 
|basionyms=
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Pennisetum pedicellatum subsp. unispiculum
 
|name=Pennisetum pedicellatum subsp. unispiculum
 
|authority=Brunken
 
|authority=Brunken
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|rank=subspecies
 
}}
 
}}
 
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Pennisetum;Pennisetum pedicellatum
 
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Pennisetum;Pennisetum pedicellatum
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name=Pennisetum pedicellatum
 
name=Pennisetum pedicellatum
|author=
 
 
|authority=Trin.
 
|authority=Trin.
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
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|illustrator=Linda A. Vorobik
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|illustration copyright=Utah State University
 
|distribution=Fla.
 
|distribution=Fla.
 
|reference=None
 
|reference=None
 
|publication title=
 
|publication title=
 
|publication year=
 
|publication year=
|special status=
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|special status=Introduced
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_1361.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1361.xml
 
|subfamily=Poaceae subfam. Panicoideae
 
|subfamily=Poaceae subfam. Panicoideae
 
|tribe=Poaceae tribe Paniceae
 
|tribe=Poaceae tribe Paniceae

Latest revision as of 17:56, 11 May 2021

Plants usually annual, occasion¬ally perennial; cespitose. Culms 40-150 cm, erect, branching; nodes glabrous. Sheaths glabrous, margins ciliate; ligules 1-2 mm; blades 6-30 cm long, 4-15 mm wide, flat, pubescent, basal margins ciliate. Panicles terminal and axillary, (5)8-19 cm long, 30-35 mm wide, erect, pink to purple; rachises terete, puberulent at the base. Fascicles 14-15 per cm, disarticulating at maturity; fascicle axes 1.5-2.5 mm, with (1)2-5 spikelets; outer bristles 10-20, 1.2-2 mm, scabrous; inner bristles 40-90, 2.2-14 mm, long ciliate; primary bristles 15-25 mm, long-ciliate, noticeably longer than the other bristles. Spikelets 3.4-4.8 mm; pedicels 0.5-3.5 mm; lower glumes 1.2-2.4 mm, 0-1-veined; upper glumes 3.4-4.8 mm, glabrous, 5-veined; lower florets staminate or sterile; lower lemmas 3.1-4 mm, 5(6)-veined; lower paleas 2.5-3.5 mm; anthers 3, 2.2-2.5 mm; upper florets disarticulating at maturity; upper lemmas 2-2.7 mm, coriaceous, smooth, shiny, 5-veined, margins glabrous, apices ciliate; anthers 1.5-2.5 mm. Caryopses about 1.7 mm, concealed by lemma and palea at maturity. 2n = 24, 30, 32, 35, 36.

Discussion

Pennisetum pedicellatum is native to Africa. It now grows in many other areas, including Florida. The U.S. Department of Agriculture considers it a noxious weed.

Selected References

None.

Lower Taxa

None.