Juncus coriaceus

Mackenzie

Bulletin of the Torrey Botanical Club 56:28. 1929.

Endemic
Treatment appears in FNA Volume 22.

Herbs, perennial, tufted, 3–9 dm. Rhizomes densely branching. Culms few-to-many. Cataphylls 1–3. Leaves basal, 0–1 (–2); auricles 0.2–0.4 (–0.6) mm, scarious to leathery; blade nearly terete but slightly channeled adaxially, 10–50 cm × 0.7–1.8 mm, margins entire.. Inflorescences falsely lateral, 5–35-flowered, loose to congested, 1–8 cm; primary bract exceeding inflorescence. Flowers: pedicels 0.5–2.5 mm; bracteoles 2; tepals dark green, lanceolate, 3.5–5 mm; inner series slightly shorter, apex acute; stamens 6, fewer in cleistogamous flowers, filaments 0.8–1.2 mm, anthers 0.5–1.1 mm; style 0.9–1.3 mm. Capsules light to dark-brown, 1-locular, widely ovoid to nearly globose, 3.5–5 × 2.6–3.2 mm. Seeds light to dark-brown, oblate, 0.55–0.73 mm, not tailed. 2n = 80.


Phenology: Flowering and fruiting spring–early summer.
Habitat: Springy, wet woodlands, stream banks, marshy areas, flatwood depressions, and shaded or exposed disturbed, sites with poor drainage

Distribution

V22 164-distribution-map.jpg

Ala., Ark., Del., Fla., Ga., Ky., La., Md., Miss., N.J., N.Y., N.C., Okla., S.C., Tenn., Tex.as, Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus coriaceus"
persistent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
scarious +  and leathery +
Ralph E. Brooks* +  and Steven E. Clemants* +
Mackenzie +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
channeled;terete +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
ascending +  and erect +
terete +, involute +  and flat +
light +  and dark-brown +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
widely ovoid;nearly globose +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
flattened +  and round +
Ala. +, Ark. +, Del. +, Fla. +, Ga. +, Ky. +, La. +, Md. +, Miss. +, N.J. +, N.Y. +, N.C. +, Okla. +, S.C. +, Tenn. +, Tex.as +  and Va. +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
arranged +  and cluster +
cleistogamous +
headlike +
Springy, wet woodlands, stream banks, marshy areas, flatwood depressions, and shaded or exposed disturbed, sites with poor drainage +
loose +  and congested +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3 +  and 1 +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
green;brown or purplish black +
persistent +
Flowering and fruiting spring–early summer. +
parietal +  and axile +
Bulletin of the Torrey Botanical Club +
light +  and dark-brown +
not tailed;oblate +
0.055 cm0.55 mm <br />5.5e-4 m <br /> (0.073 cm0.73 mm <br />7.3e-4 m <br />) +
green;brown or purplish black +
persistent +
fewer +  and 6 +
generally longer +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +  and 0.13 cm1.3 mm <br />0.0013 m <br /> (?) +
Juncus sect. Poiophylli +, Juncus subg. Pseudo-tenageia +, Juncus sect. Tenageia +  and Juncus subg. Tenageia +
Juncus coriaceus +
Juncus subg. Poiophylli +
species +
lanceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +