Juncus gymnocarpus
Memoirs of the Torrey Botanical Club 5: 106. 1894.
Common names: Pennsylvania rush
Endemic
Basionym: Juncus smithii Engelmann Trans. Acad. Sci. St. Louis 2: 444. 1866,
Treatment appears in FNA Volume 22.
Herbs, perennial, 5–10 dm. Rhizomes widely creeping, 2–4 mm diam. Culms terete, 1.5–2.5 mm diam. Cataphylls several. Leaves: blade absent. Inflorescences 8–30 (–50) -flowered, open, 1.5–4 cm; primary bract terete, 1–2.5 dm, much longer than inflorescence. Flowers pedicellate; bracteoles broadly ovate; tepals light-brown, ovatelanceolate, 1.8–2.5 mm, apex acuminate; inner series shorter, margins scarious, apex acute; stamens 6, filaments 1–1.3 mm, anthers 0.5–0.7 mm; style 0.5 mm. Capsules reddish tan to brown, lustrous, 3-locular, widely ellipsoid, 2–3 × 1.8–2.2 mm, exceeding perianth. Seeds dark amber, obovoid, 0.7–1 mm, not tailed.
Phenology: Flowering and fruiting summer.
Habitat: Sphagnous swamps, low woods, edges of lakes
Elevation: 600–1500 m
Distribution
Ala., Fla., Miss., N.C., Pa., S.C., Tenn.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Juncus gymnocarpus"
persistent +
white +
not septate +
absent +
glabrous +
channeled;terete +
leaflike +
erect +
more2;1 +
terete +
absent +
ovate +
monochasial +
septicidal +
lustrous +
ellipsoid +
several +
Pennsylvania rush +
1.5mm;2.5mm +
terete +
earlike +
pedicellate +
symmetric +
single +
bisexual +
headlike +
loculicidal +
singly +
1;many +
reduced +
basal +
hairy +
involute +
scarious +
superior +
green;brown or purplish black +
persistent +
basal +
much longer +
terete +
Memoirs of the Torrey Botanical Club +
1894 +
creeping +
dark amber +
many +
not tailed;obovoid +
green;brown or purplish black +
persistent +
open +
overlapping +
fused +
Endemic +
generally longer +
0.5 cm5 mm <br />0.005 m <br /> (?) +
translucent +
reduced +
Juncus gymnocarpus +
Juncus subg. Genuini +
species +
light-brown +
ovatelanceolate +
rhizomatous +
perennial +