Juncus georgianus

Coville

Bulletin of the Torrey Botanical Club 22:44. 1895.

Common names: Georgia rush
Endemic
Treatment appears in FNA Volume 22.

Herbs, short-lived perennial, cespitose, to 4 dm. Culms 3–40. Leaves basal, 2–3; auricles 0.2–0.3 mm, scarious to membranous; blade flat, 5–15 cm × 0.4–0.7 mm, margins entire. Inflorescences (3–) 8–30 (–45) -flowered, diffuse, 3–11 cm; primary bract rarely surpassing inflorescence. Flowers: bracteoles 2; tepals greenish to tan, lanceolate, (3.3–) 3.6–5.1 (–5.7) mm; outer and inner series nearly equal, apex acuminate; stamens 6, filaments 0.2–0.4 mm, anthers (0.8–) 1.2–1.5 (–1.7) mm; style 0.6–0.8 mm. Capsules tan, 3-locular, ellipsoid to narrowly so, 2.7–4 × 1.2–1.7 mm. Seeds tan, ellipsoid or widely so, 0.364–0.45 mm, not tailed. 2n = ca. 80.


Phenology: Flowering and fruiting spring.
Habitat: Exposed sites with thin, usually sandy soil over surfacing granite (flatrocks), the soil in these areas may be moist in the spring from seepage or for a short period after rainfalls
Elevation: 300–600 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Juncus georgianus"
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
persistent +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
acuminate +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
scarious +  and membranous +
Ralph E. Brooks* +  and Steven E. Clemants* +
Coville +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
channeled;terete +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
ascending +  and erect +
terete +, involute +  and flat +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
ellipsoid +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Georgia rush +
flattened +  and round +
Ala. +, Ga. +, N.C. +  and S.C. +
300–600 m +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
arranged +  and cluster +
headlike +
Exposed sites with thin, usually sandy soil over surfacing granite (flatrocks), the soil in these areas may be moist in the spring from seepage or for a short period after rainfalls +
(3-)8-30(-45)-flowered +
pseudoaxillary +  and terminal +
3 cm30 mm <br />0.03 m <br /> (11 cm110 mm <br />0.11 m <br />) +
3 +  and 1 +
green;brown or purplish black +
persistent +
Flowering and fruiting spring. +
parietal +  and axile +
Bulletin of the Torrey Botanical Club +
not tailed;widely;ellipsoid +
0.0364 cm0.364 mm <br />3.64e-4 m <br /> (0.045 cm0.45 mm <br />4.5e-4 m <br />) +
green;brown or purplish black +
persistent +
generally longer +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (?) +  and 0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +
Juncus sect. Poiophylli +, Juncus subg. Pseudo-tenageia +, Juncus sect. Tenageia +  and Juncus subg. Tenageia +
Juncus georgianus +
Juncus subg. Poiophylli +
species +
0.51 cm5.1 mm <br />0.0051 m <br /> (0.57 cm5.7 mm <br />0.0057 m <br />) +
greenish +  and tan +
lanceolate +
0.36 cm3.6 mm <br />0.0036 m <br /> (0.51 cm5.1 mm <br />0.0051 m <br />) +
perennial +  and short-lived +
herb +  and cespitose +