Carex radfordii

Gaddy

Novon 5: 259, fig. 1. 1995.

Treatment appears in FNA Volume 23. Treatment on page 437. Mentioned on page 433, 434.

Culms densely tufted, erect, ascending, rarely decumbent, 28–61 cm × 0.7–1.2 mm. Leaves: basal sheaths pale-brown; sheaths 0.8–32 mm; blades erect or ascending, glaucous, midrib well developed especially abaxially, 2 lateral-veins developed adaxially, flat, 28–59 cm × 5–10 mm, dead leaves lateral to new clumps, blades of overwintered leaves densely papillose abaxially. Inflorescences: longer peduncles of proximal lateral spikes 1.4–14 times as long as spikes they subtend; peduncles of terminal spike 0.4–11 cm. Bracts 0.2–1 cm × 2–4.5 mm, longest bract blade 5–8 cm; bract blades of distal lateral spikes linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes 4 (–5) per culm; lateral spikes 14–45 × 2.2–4.5 mm, distal lateral spikes separate; terminal spike linear, 12–40 × 2–3.5 mm. Pistillate scales 3–9 × 1.4–2.1 mm, apex aristate, rarely acute, awn 1–5 mm, serrulate. Staminate scales 7–11 × 1.2–2 mm, margins hyaline. Anthers 3.2–3.8 mm. Perigynia 3–10 per spike, loosely overlapping, ratio of longer lateral spike length to pergynia number 1.9–3.4, ascending, finely, conspicuously (22–) 25–32-veined, obovate, 3.1–4.5 × 1.8–2.3 mm; beak slightly recurved, 0.9–1.5 mm. Achenes obovoid, 1.2–2.8 × 0.9–1.4 mm. 2n = 46.


Phenology: Fruiting spring.
Habitat: Moist, deciduous forests, moist calcareous soils
Elevation: 300–600 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

"narrower" is not a number.

... more about "Carex radfordii"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
0.9mm;1.4mm +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
Charles T. Bryson +  and Robert F. C. Naczi +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
shortened +
tapering +
Laxiflorae +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
papillose +
m--shaped +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
purple +  and brown +
28 cm280 mm <br />0.28 m <br /> (61 cm610 mm <br />0.61 m <br />) +
ascending +  and erect +
round +  and trigonous +
0.7mm;1.2mm +
N.C. +  and S.C. +
300–600 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist, deciduous forests, moist calcareous soils +
prophyllate +, pedunculate +  and pistillate +
1.4 cm14 mm <br />0.014 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
28cm +  and 59cm +
basal +  and cauline +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.4-14 times as long as spikes +
0.4 cm4 mm <br />0.004 m <br /> (11 cm110 mm <br />0.11 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
(22-)25-32-veined +
not black-mottled +, yellowbrown +  and dark-brown +
0.31 cm3.1 mm <br />0.0031 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
Fruiting spring. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
long-sheathing +  and leaflike +
awned +  and acute +
adventitious +
staminate +  and pistillate +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
basal +  and proximal +
2-keeled +
1.2mm;2mm +
cylindric +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex radfordii +
Carex sect. Laxiflorae +
species +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
plant +  and cespitose +