Juncus filiformis

Illustrator: Yevonn Wilson-Ramsey

Copyright: Flora of North America Association

Herbs, perennial, 0.2–3.5 dm. Rhizomes widely creeping, sparingly branched, 1.5–2 mm diam., nodes closely set. Culms terete, 1 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences 3–10(–12)-flowered, loosely congested, 1–2 cm; primary bract terete, nearly equaling to much longer than culm. Flowers pedicellate; bracteoles broadly ovate, tepals light brown or green, lanceolate, 2.5–4.2 mm; inner series loosely subtending capsule at maturity, slightly shorter, margins scarious; stamens 6, filaments 0.5–0.9 mm, anthers 0.5–0.7 mm; style 0.2 mm. Capsules tan, 3-locular, nearly globose, 2.5–3 × 1.8–2.1 mm, shorter than perianth. Seeds amber, 0.5–0.6 mm, not tailed. 2n = 40, 70, 80, 84.

Phenology: Flowering and fruiting summer.
Habitat: Usually sandy, moist or wet soil along stream banks, pools, lakes or in meadow depressions, rarely in bogs, frequently hidden by larger vegetation
Elevation: 0–3000 m

Distribution

• Generated Map
• Legacy Map

Greenland, St. Pierre and Miquelon, Alta., B.C., Man., Nfld. and Labr., N.B., N.S., N.W.T., Nunavut, Ont., P.E.I., Que., Sask., Yukon, Alaska, Colo., Idaho, Maine, Mass., Mich., Minn., Mont., Nebr., N.H., N.J., N.Y., Oreg., Pa., Utah, Vt., Wash., W.Va., Wis., Wyo., Eurasia, Atlantic Islands (Iceland).

Discussion

Selected References

None.

Lower Taxa

None.