Juncus textilis |
Juncus tenuis |
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basket rush, mat or basket rush |
path rush, poverty or slender rush, poverty rush, slender rush |
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Habit | Herbs, perennial, 10–20 dm. | Herbs, perennial, tufted, 1.5–5 dm. |
Rhizomes | long- creeping. |
densely branching. |
Culms | erect, 2–5 mm diam. |
few–20. |
Cataphylls | several. |
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Leaves | blade absent. |
basal, (1–)2–3; auricles 2–5 mm, apex acute, membranous; blade flat, 3–12 cm × 0.5–1 mm, margins entire. |
Inflorescences | lateral, many flowered, loose; primary bract barely exceeding to many times longer than inflorescence. |
5–40-flowered, borne congested or branch internodes ca. as long as tepals, ssomewhat loose, 1–5 cm; primary bract usually longer than inflorescence. |
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. |
bracteoles 2; tepals greenish, lanceolate, 3.3–4.4 mm; outer and inner series nearly equal; stamens 6, filaments 0.5–0.9 mm, anthers 0.1–0.2 mm; style 0.1–0.2 mm. |
Capsules | dark brown, 3-locular, oblate to narrowly ovoid, 3–4 mm, nearly equal to perianth. |
tan or light brown, 1-locular to pseudo-3-locular, ellipsoid, (3.3–)3.8–4.7 × (1.1–)1.3–1.7 mm, nearly equal to tepals. |
Seeds | dark amber, oblate to ellipsoid, 0.5–0.8 mm. |
tan, ellipsoid to lunate, (0.52–)5.5–0.65(–0.7) mm, not tailed. |
2n | = 80. |
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Juncus textilis |
Juncus tenuis |
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Phenology | Flowering and fruiting summer. | Flowering spring–early summer. |
Habitat | Moist or wet exposed areas | Exposed or shaded sites in soils ranging from sandy to clayey under moist or drier conditions, oftentimes these sites naturally or otherwise disturbed (e.g., game or human trails) |
Elevation | 100–1800 m (300–5900 ft) | |
Distribution |
CA
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AK; AL; AR; AZ; CA; CO; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NM; NV; NY; OH; OK; OR; PA; RI; SC; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NB; NS; ON; PE; QC; SK [Introduced worldwide]
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Discussion | Juncus tenuis occurs throughout North America. It is particularly abundant in northeastern United States and eastern Canada, although infrequent in the south and west. Through the use of isozyme electrophoresis, hybridization can be demonstrated between various members of the Juncus tenuis complex, including Juncus tenuis, J. anthelatus, J. interior, J. secundus, and J. dichotomus (R. E. Brooks, unpubl.). Juncus ××oronensis is thought to be a hybrid between J. tenuis and J. vaseyi in the northeast. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 22. | FNA vol. 22. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | J. lesueurii var. elatus | J. bicornis, J. bicornis var. williamsii, J. macer, J. macer, J. macer var. williamsii, J. tenuis var. bicornis, J. tenuis var. multicornis, J. tenuis var. williamsii |
Name authority | Buchenau: Abhandlungen herausgegeben vom naturwissenschaftlichen Vereine zu Bremen 17: 336. (1903) | Willdenow: Sp. Pl. 2(1): 214. (1799) |
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