Juncus trigonocarpus

Steudel

Syn. Pl. Glumac. 2: 308. 1855.

IllustratedEndemic
Synonyms: Juncus caudatus Chapman
Treatment appears in FNA Volume 22.

Herbs, perennial, cespitose, 5–10 dm. Culms erect, 2–5 mm diam., smooth. Cataphylls 1–2, straw-colored, apex rounded. Leaves: basal 0–1, cauline 2–3; auricles 0.2–0.4 mm, apex obtuse, leathery; blade terete, 2.5–22 cm × 1.3–4 mm, smooth. Inflorescences panicles of 30–100 heads, 3–9 cm, stiffly erect or ascending branches; primary bract erect; heads 2–8-flowered, obconic, 4–8 mm diam. Flowers: tepals green to reddish-brown, lanceolate; outer tepals 2.5–2.8 mm, acuminate; inner tepals 2.8–3.5 mm, acute; stamens 3–6, anthers 1/2 filament length. Capsules exserted, chestnut-brown, 3-locular, ovoid-pyramidal, 4–5 mm, apex acuminate, valves separating at dehiscence.. Seeds fusiform, 1.8–2.6 mm, tailed; body covered with whitish. translucent veil.


Phenology: Fruiting early fall–early winter (fruit often persisting until spring).
Habitat: Wet pinewoods, pine barrens, bogs, hammocks, roadsides, and seepy areas
Elevation: 0–200 m

Distribution

V22 206-distribution-map.jpg

Ala., Fla., Ga., La., Miss., N.C., S.C., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus trigonocarpus"
persistent +
acuminate +, obtuse +  and rounded +
leathery +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Ralph E. Brooks* +  and Steven E. Clemants* +
Steudel +
2.5 cm25 mm <br />0.025 m <br /> (22 cm220 mm <br />0.22 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
ascending +  and erect +
terete +, involute +  and flat +
chestnut-brown +
ovoid-pyramidal +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
straw-colored +
Ala. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +  and Tex. +
0–200 m +
arranged +  and cluster +
headlike +
Wet pinewoods, pine barrens, bogs, hammocks, roadsides, and seepy areas +
2-8-flowered +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
obconic +
pseudoaxillary +  and terminal +
ascending +  and erect +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
cauline +  and basal +
3 +  and 1 +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
green;brown or purplish black +
persistent +
Fruiting early fall–early winter (fruit often persisting until spring). +
parietal +  and axile +
Syn. Pl. Glumac. +
tailed;fusiform +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
green;brown or purplish black +
persistent +
Illustrated +  and Endemic +
3 +  and 6 +
generally longer +
Juncus caudatus +
Juncus trigonocarpus +
Juncus subg. Septati +
species +
green +  and reddish-brown +
lanceolate +
herb +  and cespitose +