Difference between revisions of "Juncus occidentalis"

(Coville) Wiegand

Bulletin of the Torrey Botanical Club 27: 521. 1900.

Common names: Western rush
Endemic
Basionym: Juncus tenuis var. occidentalis Coville Proc. Biol. Soc. Wash. 10: 129. 1896
Synonyms: Juncus tenuis var. congestus Engelmann
Treatment appears in FNA Volume 22.
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|common_names=Western rush
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}
 
|basionyms={{Treatment/ID/Basionym
 
|basionyms={{Treatment/ID/Basionym
 
|name=Juncus tenuis var. occidentalis
 
|name=Juncus tenuis var. occidentalis
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|publication title=Bulletin of the Torrey Botanical Club
 
|publication title=Bulletin of the Torrey Botanical Club
 
|publication year=1900
 
|publication year=1900
|special status=
+
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V22/V22_572.xml
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|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V22/V22_572.xml
 
|genus=Juncus
 
|genus=Juncus
 
|subgenus=Juncus subg. Poiophylli
 
|subgenus=Juncus subg. Poiophylli

Revision as of 21:24, 27 May 2020

Herbs, perennial, cespitose, 3–6 dm. Rhizomes densely branching. Culms few–20. Leaves basal, (1–)2–3; auricles 0.5–1(–1.5) mm, apex acutish, membranous; blade flat, 5–15 cm × 0.5–1.3 mm, margins entire. Inflorescences 5–50-flowered, somewhat loose, 1–7 cm; primary bract usually longer than inflorescence. Flowers: bracteoles 2; tepals greenish, lanceolate, (3.5–)5 mm; outer and inner series nearly equal; stamens 6, filaments 0.5–1 mm, anthers 0.1–0.3 mm; style 0.1–0.2 mm. Capsules light brown, 1-locular to pseudo-3-locular, ellipsoid, (3–)5–4.5 × 1.2–1.8 mm, nearly equal to shorter than tepals. Seeds tan, ellipsoid to lunate, 5.5–0.7 mm, not tailed. 2n = 80.


Phenology: Flowering spring–early summer.
Habitat: Moist, usually exposed sites in clayey or sandy soil around springs, along rivers and streams, and around lakes
Elevation: below 2300 m

Distribution

V22 572-distribution-map.jpg

Ariz., Calif., Idaho, Nev., Oreg., Wash.

Discussion

Juncus occidentalis should perhaps be considered a robust variant of J. tenuis.

Selected References

None.

Lower Taxa

None.
... more about "Juncus occidentalis"
Ralph E. Brooks* +  and Steven E. Clemants* +
(Coville) Wiegand +
Juncus tenuis var. occidentalis +
Western rush +
Ariz. +, Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
below 2300 m +
Moist, usually exposed sites in clayey or sandy soil around springs, along rivers and streams, and around lakes +
Flowering spring–early summer. +
Bulletin of the Torrey Botanical Club +
Juncus tenuis var. congestus +
Juncus occidentalis +
Juncus subg. Poiophylli +
species +