Difference between revisions of "Eragrostis lugens"

Nees
Common names: Mourning lovegrass
Treatment appears in FNA Volume 25. Treatment on page 95.
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Eragrostis lugens
 
name=Eragrostis lugens
|author=
 
 
|authority=Nees
 
|authority=Nees
 
|rank=species
 
|rank=species
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|basionyms=
 
|basionyms=
 
|family=Poaceae
 
|family=Poaceae
 +
|illustrator=Linda A. Vorobik;Cindy Roché
 +
|illustration copyright=Utah State University
 
|distribution=Miss.;Tex.;La.;Fla.;Ala.;Tenn.;N.C.;S.C.;Ark.;Ga.;Mo.;Okla.
 
|distribution=Miss.;Tex.;La.;Fla.;Ala.;Tenn.;N.C.;S.C.;Ark.;Ga.;Mo.;Okla.
 
|reference=None
 
|reference=None
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|publication year=
 
|publication year=
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_153.xml
+
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_153.xml
 
|subfamily=Poaceae subfam. Chloridoideae
 
|subfamily=Poaceae subfam. Chloridoideae
 
|tribe=Poaceae tribe Cynodonteae
 
|tribe=Poaceae tribe Cynodonteae

Latest revision as of 17:57, 11 May 2021

Plants perennial; cespitose, with innovations, without rhizomes, not glandular. Culms 30-70 cm, erect, sometimes geniculate, glabrous below the nodes. Sheaths usually mostly glabrous, summits hairy, hairs 2-5 mm, never papillose-based; ligules 0.2-0.3 mm; blades (4)8-22 cm long, 1-3.5 mm wide, involute to flat, both surfaces glabrous, margins sometimes with scattered hairs, hairs to 7 mm. Panicles 16-28 cm long, 10-21 cm wide, ovate, open; primary branches 0.6-15 cm, diverging up to 100° from the rachises, naked basally; pulvini hairy; pedicels 1.4-5(7) mm, diverging, wiry, present on all spikelets. Spikelets 2-4.5(5) mm long, 0.5-1(1.3) mm wide, narrowly lanceolate, plumbeous to reddish-purple, with 2-7 florets; disarticulation acropetal, paleas persistent. Glumes broadly ovate to narrowly lanceolate, hyaline, sometimes reddish-purple; lower glumes 0.6-1 mm; upper glumes 1.1-1.4 mm, usually broader than the lower glumes; lemmas 1.2-1.8 mm, broadly ovate, mostly membranous but the distal margins hyaline, lateral veins inconspicuous, apices acute; paleas 1.1-1.7 mm, membranous to hyaline, apices obtuse; anthers 3, 0.2-0.7 mm, reddish-purple. Caryopses 0.5-0.6 mm, obovoid to somewhat prism-shaped, terete to somewhat laterally compressed, sometimes with a weak adaxial groove, finely striate, usually opaque, faintly reddish-brown to whitish. 2n = 40, 80, ca. 108.

Distribution

Miss., Tex., La., Fla., Ala., Tenn., N.C., S.C., Ark., Ga., Mo., Okla.

Discussion

Eragrostis lugens grows on sandy dunes and along river banks, at 1-300 m. Its range extends from the southern United States to Peru and Argentina.

Selected References

None.

Lower Taxa

None.