Juncus textilis |
Juncus subtilis |
|
---|---|---|
basket rush, mat or basket rush |
creeping rush, greater creeping rush, jonc délié |
|
Habit | Herbs, perennial, 10–20 dm. | Herbs, perennial, emergent, rhizomatous (forming mats to 5 dm), 0.5–1 dm. |
Rhizomes | long- creeping. |
1 mm diam., nodes not swollen. |
Culms | erect, 2–5 mm diam. |
repent, floating or submersed, usually profusely branched, terete, 0.5–1 mm diam. |
Cataphylls | several. |
absent. |
Leaves | blade absent. |
basal 1–5, cauline 1–4, small fascicles of short capillary leaves often on rhizomes and stems; auricles 0.1–0.8 mm, apex acute, membranaceous; blade terete, 1.6–3 cm × 0.1–0.3 mm. |
Inflorescences | lateral, many flowered, loose; primary bract barely exceeding to many times longer than inflorescence. |
cymes, flowers 1–3 at 1–2 nodes, 1–4 cm, branches spreading to erect. |
Flowers | variously pedicellate; bracteoles membranous; tepals greenish to pale brown, lanceolate, 3.5–5 mm; inner series loosely subtending capsule at maturity, usually slightly shorter, margins scarious to clear, acutish; stamens 6, filaments 0.3–0.9 mm, anthers 1–2.5 mm; style 1–1.5 mm. |
tepals reddish, oblong; outer tepals 1.8–2.8 mm, obtuse; inner tepals 2.2–4.4 mm, obtuse; stamens 6, anthers 3/4 to equal filament length. |
Capsules | dark brown, 3-locular, oblate to narrowly ovoid, 3–4 mm, nearly equal to perianth. |
exserted, chestnut brown, 1-locular, ovoid to narrowly ovoid, 2.4–5 mm, apex acute proximal to beak, valves separating at dehiscence. |
Seeds | dark amber, oblate to ellipsoid, 0.5–0.8 mm. |
ovoid, 0.3–0.5 mm, not tailed; body clear yellow-brown. |
2n | = 40. |
|
Juncus textilis |
Juncus subtilis |
|
Phenology | Flowering and fruiting summer. | Fruiting late summer–early fall. |
Habitat | Moist or wet exposed areas | Muddy, sandy or gravelly shores, fens in decomposed peat, fine muds rich in humus, and submersed in brackish pools |
Elevation | 100–1800 m (300–5900 ft) | 0–200 m (0–700 ft) |
Distribution |
CA
|
ME; NB; NL; ON; QC; Greenland |
Discussion | Flowers are rarely replaced by bulbils. Most Greenland collections are sterile. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 22. | FNA vol. 22, p. 245. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | J. lesueurii var. elatus | J. uliginosus var. subtilis, J. pelocarpus var. subtilis, J. pelocarpus var. fluitans |
Name authority | Buchenau: Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 17: 336. (1903) | E. Meyer: Syn. Luzul. 31. (1823) |
Web links |