Juncus patens

E. Meyer

Syn. Luzul. 28. 1823.

Treatment appears in FNA Volume 22.

Herbs, perennial, occasionally tufted, occasionally rhizomatous, 3–9 dm. Rhizomes, if present, short. Culms green or glaucous, 1.5–2.5 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences lateral, many flowered, loose to congested, 2–9 cm; primary bract exceeding inflorescence. Flowers variously pedicellate; bracteoles membranous; tepals greenish, light-brown or reddish, lanceolate, 2.3–3 mm; inner series nearly equal, margins scarious; stamens 6, filaments 0.6–1 mm, anthers 0.4–0.6 mm; style 0.1 mm. Capsules 3-locular or pseudo-3-locular, nearly globose, 2–2.7 mm, equal to or exceeding perianth. Seeds dark amber, oblate, 0.4–0.5 mm.


Phenology: Flowering and fruiting summer.
Habitat: Stream banks, lake or pond shores, ditches, and other wet places in sandy or clayey soils
Elevation: 0–1600 m

Distribution

V22 64-distribution-map.jpg

Calif., Oreg., nw Mexico, Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus patens"
persistent +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Ralph E. Brooks* +  and Steven E. Clemants* +
E. Meyer +
channeled;terete +
0.2 cm2 mm <br />0.002 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
1.5mm;2.5mm +
Calif. +, Oreg. +, nw Mexico +  and Wash. +
0–1600 m +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
arranged +  and cluster +
headlike +
Stream banks, lake or pond shores, ditches, and other wet places in sandy or clayey soils +
loose +  and congested +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting summer. +
parietal +  and axile +
Syn. Luzul. +
dark amber +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
green;brown or purplish black +
persistent +
generally longer +
0.1 cm1 mm <br />0.001 m <br /> (?) +
Juncus sect. Genuini +, Juncus sect. Juncotypus +  and Juncus subg. Juncotypus +
Juncus patens +
Juncus subg. Genuini +
species +
reddish +, light-brown +  and greenish +
lanceolate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +