Show Lower Taxa
Difference between revisions of "Juncus subg. Juncus"
Basionym: Juncus sect. Juncastrum Kuntze in Post & Kuntze Juncus subg. Juncastrum Buchenau in Komarov
Synonyms: Juncus sect. Acuti Rouy Juncus sect. Maritimi (Engelmann) Rouy Juncus sect. Thalassii (Buchenau) Vierhapper Juncus subg. Thalassii
Treatment appears in FNA Volume 22.
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Revision as of 21:22, 27 May 2020
Herbs, perennial, rhizomatous. Stems terete. Leaves basal; blade terete, not septate. Inflorescences terminal (sometimes appearing lateral) panicles of few to many heads, sympodial; bracteoles absent proximal to perianth. Flowers in few-flowered heads. Capsules 3-locular or pseudo-3-locular. Seeds usually tailed (not tailed in J. roemerianus).
Distribution
Worldwide, coastal in North America.
Discussion
Species 9 (4 in the flora).
Selected References
Lower Taxa
Key
| 1 | Capsules 3.5–5 mm; plants of sw United States. | > 2 |
| 1 | Capsules less than 3.5 mm, shorter than or nearly equal to perianth; plants of ne United States Atlantic Coast. | > 3 |
| 2 | Capsules nearly globose, obviously longer than perianth | Juncus acutus subsp. leopoldii |
| 2 | Capsules ellipsoid, nearly equal to or shorter than perianth | Juncus cooperi |
| 3 | Capsules nearly equal to perianth; seeds tailed | Juncus maritimus |
| 3 | Capsules distinctly shorter than perianth; seed not tailed | Juncus roemerianus |