Carex perdentata

S. D. Jones

Sida 16: 342, fig. 1. 1994.

Treatment appears in FNA Volume 23. Treatment on page 294. Mentioned on page 286, 287, 293, 295, 537.

Plants without conspicuous rhizomes. Culms 17–75 (–90) cm, 2–3.5 mm wide basally, 0.5 mm wide distally. Leaves: sheaths tight, green, fronts hyaline; ligules to 2.5 mm, as long as wide; widest leaf-blades 2.2–4.6 mm wide, papillose adaxially. Inflorescences with 5–14 spikes, 1.4–2.8 cm × 9–14.5 mm; proximal bracts 0.7–6 (–10) cm, shorter than to 2.5 (–5) times as long as inflorescences; spikes with (2–) 4–24 ascending to spreading perigynia; proximal internodes shorter than proximal spikes. Pistillate scales pale-brown to greenish hyaline, with green usually 1-veined center, ovate, 1.6–3.1 × 1.4–2.2 mm, body narrower than and 2/3 length of perigynium, apex usually awned, awn to 3.6 mm. Anthers 1.3–1.9 mm. Perigynia pale green to pale-brown, veinless or weakly 1–10-veined on each face, 3.3–5.6 × 1.9–2.8 mm, margins serrulate distally, base of body somewhat spongy, thickened; beak (1–) 1.4–1.8 mm, apical teeth (0.5–) 1.4–1.8 mm. Achenes suborbiculate, 1.8–2.8 × 1.5–2.2 mm.


Phenology: Fruiting spring.
Habitat: Open mesic forests and savannas
Elevation: 200–500 m

Discussion

Carex perdentata is fairly widespread in central Texas and may occur in similar habitats in neighboring states. It can be confused with other species in the section, especially C. arkansana, C. mesochorea, and C. muehlenbergii.

Selected References

None.

Lower Taxa

None.

"/3lengthofperigynium" is not declared as a valid unit of measurement for this property.

... more about "Carex perdentata"
0.18 cm1.8 mm <br />0.0018 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
suborbiculate +
smaller +
1.5mm;2.2mm +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Peter W. Ball +
S. D. Jones +
0 cm0 mm <br />0 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
shortened +
white-hyaline +, hyaline +  and narrow +
red tinged +  and brown +
rounded +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
bidentate +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
v--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
scale-like +  and leaflike +
parallel +  and divergent +
terete +, rolled +  and plicate +
round +  and trigonous +
17 cm170 mm <br />0.17 m <br /> (75 cm750 mm <br />0.75 m <br />) +
0.5;2mm;3.5mm +
Okla. +  and Tex. +
200–500 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Open mesic forests and savannas +
, +  and racemose +
sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
1-10-veined +  and veinless +
pale green +  and pale-brown +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
ascending +  and spreading +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
Fruiting spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (6 cm60 mm <br />0.06 m <br />) +
adventitious +
pale-brown +  and greenish hyaline +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
basal +  and proximal +
1.4mm;2.2mm +
cylindric +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex perdentata +
Carex sect. Phaestoglochin +
species +
rhizomatous +  and short-rhizomatous +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +