Carex viridula subsp. oedocarpa

(Andersson) B. Schmid

Watsonia 14: 316. 1983.

Common names: Carex à tige basse
Illustrated
Basionym: Carex oederi Retzius [unranked] oedocarpa Andersson Pl. Scand. 1: 25. 1849
Synonyms: Carex demissa Hornemann Carex tumidicarpa Andersson
Treatment appears in FNA Volume 23. Treatment on page 527. Mentioned on page 521, 526.

Culms arcuate or slightly sinuous, 10–35 cm. Leaves of flowering-stems shorter than to equaling culms, 1.4–4.6 mm wide, ligules of distal cauline leaves usually obsolete. Inflorescences: peduncles of terminal staminate spikes (1–) 3–28 mm; proximal pistillate spikes (1–) 2–5, approximate, the proximal usually distant and pedunculate, elliptic, 5.3–8.5 mm wide; terminal staminate spikes pedunculate, 9–23.8 × 1.3–3.3 mm. Perigynia dark olive to green, (2.7–) 3.2–3.8 (–4.2) × 1.1–1.7 mm wide, apex gradually contracted into a smooth or slightly scabrous, straight or slightly curved (less than 28°) beak; beak 0.7–1.7 mm. Achenes 1.1–1.5 × 0.9–1.2 mm.


Phenology: Fruiting Jul–Aug.
Habitat: Moist, open, acidic coastal flats, meadows, not found on lime-rich soils
Elevation: 0–200 m

Distribution

V23 989-distribution-map.jpg

Introduced; Nfld. and Labr., N.S., Que., Conn., N.J., Europe (from Norway and Finland to Portugal), Europe (Italy), Europe (and Hungary), Africa (Morocco), Atlantic Islands (Azores), Atlantic Islands (Madeira)

Discussion

The distribution of Carex viridula subsp. oedocarpa in North America coincides with areas of early European settlement in maritime Canada and northeastern United States. This taxon occurs in natural coastal grasslands in Europe and probably is introduced in North America, where it persists in coastal meadows that were managed as hay fields for colonists’ livestock.

Selected References

None.

Lower Taxa

None.

"/10" is not declared as a valid unit of measurement for this property.

0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
trigonous +
smaller +
0.9mm;1.2mm +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
William J. Crins +
(Andersson) B. Schmid +
shortened +
tapering +  and rounded +
Carex oederi +
curved +  and straight +
bidentate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
v--shaped +  and septate-nodulose +
0mm;20mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
0 cm0 mm <br />0 m <br /> (18 cm180 mm <br />0.18 m <br />) +
ascending +  and appressed +
scale-like +  and leaflike +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
Carex à tige basse +
sinuous +  and arcuate +
round +  and trigonous +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Nfld. and Labr. +, N.S. +, Que. +, Conn. +, N.J. +, Europe (from Norway and Finland to Portugal) +, Europe (Italy) +, Europe (and Hungary) +, Africa (Morocco) +, Atlantic Islands (Azores) +  and Atlantic Islands (Madeira) +
0–200 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist, open, acidic coastal flats, meadows, not found on lime-rich soils +
truncate +  and concave +
prophyllate +  and pedunculate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
0cm +  and 20cm +
basal +  and cauline +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
pale hyaline +, hyaline +  and pale +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
with (1-)3-6(-30) bristles and/or scales +
dark olive +  and green +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Fruiting Jul–Aug. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
rounded-trigonous +, ovoid +, , +  and obovoid +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.53 cm5.3 mm <br />0.0053 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
long-sheathing +  and leaflike +
cuspidate +  and acute +
short-pedunculate +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (1.75 cm17.5 mm <br />0.0175 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
adventitious +
staminate +  and pistillate +
reddish-brown +  and pale-brown +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
basal +  and proximal +
lanceolate;ovate +
0.7mm;2mm +
cylindric +
Illustrated +
approximate +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex demissa +  and Carex tumidicarpa +
Carex viridula subsp. oedocarpa +
Carex viridula +
subspecies +
pedunculate +  and staminate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
plant +  and cespitose +