Carex juniperorum

Catling

Syst. Bot. 18: 497, fig. 1. 1993.

Common names: Juniper sedge
Treatment appears in FNA Volume 23. Treatment on page 561. Mentioned on page 559, 560.

Culms 2–6.5 (–9.1) cm, tallest ones 3.2–9.1 cm. Leaves: basal sheaths reddish-brown; blades green, eceeding culms, 2–4 (–5) mm wide, coriaceous, margins green, scabrous. Lateral spikes 1–3, basal, on erect to spreading peduncles. Terminal spikes with staminate portion (5–) 7–15 (–21) -flowered, 3–8 × 0.6–1.2 mm; pistillate portion (2–) 4–9-flowered. Pistillate scales green, margins 1.2–3 mm wide, not more than 1.5 times as wide as and not concealing perigynia, apex long-acute; distal scales with hyaline margins to 0.3 mm wide, apex acute, awnless. Staminate scales green, tinged brown or reddish-brown, ovate to oblong, 0.8–1.5 × 0.8–1.2 mm, margins connate for most of their length, enfolding scales above, hyaline, white, apex truncate to obtuse (sometimes mucronate), erose. Anthers 1–1.5 mm. Perigynia green, sometimes flecked with reddish-brown, obovoid to ellipsoid, 3.8–5.1 × 1.5–2 mm, tightly enveloping achenes, apex abruptly tapering; beak (1.2–) 1.4–2.1 mm, scabrous. Stigmas filiform, flexuous, long, slender, strongly papillose. Achenes dark-brown, globose to ellipsoid, 1.9–2.5 × 1.5–2 mm.


Phenology: Fruiting spring–summer (early May–late Jun).
Habitat: Open, vernally moist, red juniper-oak glades, alvars, prairie openings, on clay soils derived from crumbling limestone
Elevation: 100–300 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

... more about "Carex juniperorum"
0.19 cm1.9 mm <br />0.0019 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
globose;ellipsoid +
1.5mm;2mm +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
William J. Crins +, Robert F. C. Naczi +, A. A. Reznicek +  and Bruce A. Ford +
Catling +
shortened +
tapering +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
flattened-triangular +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
v--shaped +
coriaceous +
0mm;20mm +
smaller +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
Juniper sedge +
2 +  and widest +
round +  and trigonous +
tallest +
3.2 cm32 mm <br />0.032 m <br /> (9.1 cm91 mm <br />0.091 m <br />) +
2mm;4mm +
Ont. +, Ky. +, Ohio +  and Va. +
100–300 m +
white +  and hyaline +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Open, vernally moist, red juniper-oak glades, alvars, prairie openings, on clay soils derived from crumbling limestone +
septate-nodulose +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
stipitate +  and 2-veined +
hyaline +  and green +
lanceolate;oblong-lanceolate rounded-trigonous +
0mm +  and 0.3mm +
with (1-)3-6(-30) bristles and/or scales +
veined +  and veinless +
flecked with reddish-brown +  and green +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.51 cm5.1 mm <br />0.0051 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Fruiting spring–summer (early May–late Jun). +
2-3(-4)-carpellate +
(2-)4-9-flowered +, pistillate +, (5-)7-15(-21)-flowered +  and staminate +
3 (?) +  and 1 (?) +
adventitious +
staminate +  and pistillate +
reddish-brown +, tinged brown +  and green +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
basal +  and proximal +
ovate;oblong +
0.8mm;1.2mm +
septate-nodulose +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillose +
filiform +
slender +
deciduous +
dilated +
Carex juniperorum +
Carex sect. Phyllostachyae +
species +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
plant +  and cespitose +