Difference between revisions of "Juncus triglumis"

Linnaeus

Sp. Pl. 1: 328. 1753.

Treatment appears in FNA Volume 22.
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Juncus triglumis
 
name=Juncus triglumis
|author=
 
 
|authority=Linnaeus
 
|authority=Linnaeus
 
|rank=species
 
|rank=species
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|publication year=1753
 
|publication year=1753
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V22/V22_458.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V22/V22_458.xml
 
|genus=Juncus
 
|genus=Juncus
 
|subgenus=Juncus subg. Alpini
 
|subgenus=Juncus subg. Alpini

Revision as of 19:58, 16 December 2019

Herbs, perennial, cespitose, 0.3–3.5 dm. Culms 1–8, 0.3–0.5 mm diam. Cataphylls 1–2. Leaves basal, 2–4; auricles slightly prolonged, rounded, scarious to ± leathery; blade deeply channeled, 2–10 cm, mostly shorter than culms. Inflorescences solitary heads, each with 2–3(–50) flowers; primary bracts brownish, nearly equal to or slightly shorter thanabout equaling inflorescence. Flowers: tepals pale brown or darker, oblong-lanceolate, 3–5 mm, outer and inner series nearly equal; stamens 6, filaments 2.5–4 mm, anthers 0.6–1 mm; styles 0.5–0.8 mm. Capsules tan, pseudo-3-locular, 3-gonous–cylindric, apex obtuse, mucronate. Seeds tan or darker, fusiform, body 0.5–1 mm, tails 0.6–1 mm.

Discussion

Varieties 3 (2 in the flora).

Selected References

None.

Key

1 Most proximal bracts of inflorescence obtuse to mucronate, usually much shorter than inflorescence; capsules well exserted from perianth, 4.5–7 mm, apex conic or rounded proximal to persistent style Juncus triglumis var. triglumis
1 Most proximal bracts of infloresecence equal to or longer than inflorescence, apex long acuminate or awned; capsules included or barely exserted from perianth, 3–5 mm, apex nearly truncate proximal to persistent style Juncus triglumis var. albescens