Difference between revisions of "Juncus bulbosus"
Sp. Pl. 1: 327. 1753.
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|common_names=Bulbous rush | |common_names=Bulbous rush | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
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|basionyms= | |basionyms= | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V22/V22_557.xml |
|genus=Juncus | |genus=Juncus | ||
|subgenus=Juncus subg. Septati | |subgenus=Juncus subg. Septati | ||
Latest revision as of 20:32, 5 November 2020
Herbs, perennial, cespitose, often with basal bulblike swellings, occasionally appearing rhizomatous, 0.3–3 dm, to 10 dm when floating or submersed. Culms erect or decumbent and rooting at nodes, or floating, terete, 1–2 mm diam., smooth. Cataphylls 1, straw-colored, apex acute. Leaves: basal 1, cauline 0–1; auricles 0.4–1 mm, apex acute, scarious; blade terete, occasionally filiform, flaccid, forming carpets, 2–10 cm × 0.8–1.4 mm. Inflorescences terminal racemes of 1–8(–30) heads, or single head, 2–10 cm, branches erect; primary bract erect; heads 2–6(–15)-flowered, obconic, 4.5–6.5 mm diam. Flowers often forming bulbils; tepals pale brown, ovate to lanceolate or inner oblong, 2–3.6 mm, nearly equal, apex acute to obtuse; stamens 3 or 6, anthers 3/4 to equal filament length. Capsules equaling perianth or exserted (to 0.5 mm beyond tepals), chestnut brown, 1-locular, cylindric, 2.5–4 mm, apex obtuse proximal to beak, valves separating at dehiscence. Seeds ellipsoid, 0.5–0.6 mm, not tailed; body clear yellow-brown.
Phenology: Fruiting mid summer–early fall.
Habitat: Margins and siliceous or peaty shores of pools and streams, often floating
Elevation: 0–200 m
Distribution
Probably introduced in North America, St. Pierre and Miquelon, B.C., Nfld. and Labr. (Nfld.), N.S., Oreg., Wash., Europe, n Africa.
Discussion
Selected References
None.