Carex macrocephala

Willdenow ex Sprengel

Syst. Veg. 3: 808. 1826.

Illustrated
Synonyms: Carex anthericoides J. Presl & C. Presl
Treatment appears in FNA Volume 23. Treatment on page 308.

Culms sharply angled, at least 1 angle serrulate distally, 10–35 cm. Inflorescences with pistillate heads 2.5–5 cm wide; proximal spikes ascending-spreading to spreading. Pistillate scales reddish to brown with green or gold center, sometimes with distal margins white or pale gold, 0.1–0.3 (–0.5) mm wide, apex short-tapered with awn to 1.2–4 mm. Anthers 2.5–5 mm. Perigynia ascending to ascending-spreading, sometimes spreading, with deeply erose wings 0.7–1.7 mm wide, base cordate; beak ± straight, 6.5–9 mm from apex to achene, apex notched 0.7–1.5 mm adaxially. Achenes 3–4.5 × 2.3–3 mm. 2n = 74, 78.


Phenology: Fruiting spring–summer.
Habitat: Sandy beaches along seacoasts, sounds, bays, and inlets, especially on dunes
Elevation: 0 m

Distribution

V23 539-distribution-map.jpg

B.C., Alaska, Oreg., Wash., Asia [Japan, Russian Far East (Kamchatka) to n China]

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Carex macrocephala"
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
rounded-trigonous +
smaller +
2.3mm;3mm +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Joy Mastrogiuseppe +
Willdenow ex Sprengel +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
shortened +
cordate +
straight +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.9 cm9 mm <br />0.009 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 +
pale gold +  and white +
B.C. +, Alaska +, Oreg. +, Wash. +, Asia [Japan +  and Russian Far East (Kamchatka) to n China] +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Sandy beaches along seacoasts, sounds, bays, and inlets, especially on dunes +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
oblong +  and ovoid +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
serrulate-winged +
with (1-)3-6(-30) bristles and/or scales +
short-stipitate +  and veined +
spreading +, ascending +  and ascending-spreading +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
thread-like;leaflike +
ascending-spreading +  and spreading +
adventitious +
reddish +  and brown +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +
sessile +, pistillate +  and staminate +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
2-3(-4)-fid +
Carex anthericoides +
Carex macrocephala +
Carex sect. Macrocephalae +
species +
plant +  and cespitose +
4mm +  and 8mm +
0.7mm +  and 1.7mm +