Juncus lesueurii

Bolander

Proceedings of the California Academy of Sciences 2: 179. 1863 (as leseurii).

Common names: Lesueur's rush
Endemic
Synonyms: Juncus balticus subsp. pacificus Engelmann Juncus lesueurii var. tracyi Jepson
Treatment appears in FNA Volume 22.

Herbs, perennial, 3–14 dm. Rhizomes long creeping. Culms erect, 1–3 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences lateral, 3–many-flowered, mostly loose; primary bract much longer than inflorescence. Flowers variously pedicellate; bracteoles membranous; tepals green, lanceolate, 5–8 mm, margins brown; inner series loosely subtending capsule at maturity, usually slightly shorter, margins scarious to clear, acutish; stamens 6, filaments 0.2–1.1 mm, anthers 0.9–2.3 mm; style 1–1.5 mm. Capsules 3-locular, oblate to narrowly ovoid, 4–7 mm, shorter than or nearly equal to perianth. Seeds dark amber, oblate to ellipsoid, 0.4–0.7 mm.


Phenology: Flowering and fruiting summer.
Habitat: Borders of salt or freshwater marshes and usually near dunes along the coast
Elevation: 0–500 m

Distribution

V22 10-distribution-map.jpg

B.C., Calif., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus lesueurii"
persistent +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Ralph E. Brooks* +  and Steven E. Clemants* +
Bolander +
channeled;terete +
oblate;narrowly ovoid +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Lesueur's rush +
B.C. +, Calif. +, Oreg. +  and Wash. +
0–500 m +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
arranged +  and cluster +
headlike +
Borders of salt or freshwater marshes and usually near dunes along the coast +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting summer. +
parietal +  and axile +
Proceedings of the California Academy of Sciences +
dark amber +
oblate;ellipsoid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
green;brown or purplish black +
persistent +
generally longer +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
Juncus balticus subsp. pacificus +  and Juncus lesueurii var. tracyi +
Juncus lesueurii +
Juncus subg. Genuini +
species +
lanceolate +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +