Difference between revisions of "Juncus arcticus var. mexicanus"
Brittonia 35: 308. 1983.
Common names: Mexican rush
Basionym: Juncus mexicanus Willdenow Syst. Veg. 7(1): 178. 1829
Synonyms: Juncus balticus var. mexicanus (Willdenow ex Roemer & Schultes) Kuntze
Treatment appears in FNA Volume 22.
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|name=Juncus mexicanus | |name=Juncus mexicanus | ||
|authority=Willdenow | |authority=Willdenow | ||
| + | |rank=species | ||
|publication_title=Syst. Veg. | |publication_title=Syst. Veg. | ||
|publication_place=7(1): 178. 1829 | |publication_place=7(1): 178. 1829 | ||
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|name=Juncus balticus var. mexicanus | |name=Juncus balticus var. mexicanus | ||
|authority=(Willdenow ex Roemer & Schultes) Kuntze | |authority=(Willdenow ex Roemer & Schultes) Kuntze | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Juncaceae;Juncus;Juncus subg. Genuini;Juncus arcticus;Juncus arcticus var. mexicanus | |hierarchy=Juncaceae;Juncus;Juncus subg. Genuini;Juncus arcticus;Juncus arcticus var. mexicanus | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Juncus arcticus var. mexicanus | name=Juncus arcticus var. mexicanus | ||
| − | |||
|authority=(Willdenow ex Roemer & Schultes) Balslev | |authority=(Willdenow ex Roemer & Schultes) Balslev | ||
|rank=variety | |rank=variety | ||
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|publication year=1983 | |publication year=1983 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V22/V22_416.xml |
|genus=Juncus | |genus=Juncus | ||
|subgenus=Juncus subg. Genuini | |subgenus=Juncus subg. Genuini | ||
Revision as of 19:58, 16 December 2019
Herbs, 2–8 dm. Culms usually compressed. Leaves: blade distinct, somewhat flattened, to 20 cm or more. Flowers: tepals usually brown or blackish, 3.5–4.5(–5.5) mm; filaments 0.2–0.4 mm, anthers 1.2–2.2 mm.
Habitat: Intermittent or permanent water courses, around springs, and in meadows in sandy or gravelly soils
Elevation: 500–3200 m
Distribution
Ariz., Calif., Colo., N.Mex., Nev., Utah, Mexico, Central America, South America.
Discussion
Juncus arcticus var. mexicanus is the common phase of the species in the extreme southwest United States and Mexico; northward the variety becomes sporadic in its occurrence. Rare individuals having leaves with blades are sometimes found in otherwise bladeless populations in more northern areas but it is doubtful that these oddities represent an equivalent variant.
Selected References
None.
Lower Taxa
None.