Carex harfordii

Mackenzie

Bull. Torrey Bot. Club 43: 615. 1917.

IllustratedEndemic
Synonyms: Carex montereyensis Mackenzie
Treatment appears in FNA Volume 23. Treatment on page 348. Mentioned on page 332, 340, 343, 344, 346.

Plants densely cespitose. Culms sometimes lax, (29–) 50–135 cm. Leaves: sheaths adaxially usually brown or gold tinged near summits, summits U-shaped, prolonged to 4 mm beyond collar; distal ligules 2–7.5 mm; blades 2–4 per fertile culm, 15–35 cm × (1.8–) 2–5 (–9.9) mm. Inflorescences dense, headlike, brown to gold, 1.1–4 cm × 7–20 mm; proximal internode 1.5–2.5 mm; 2d internode 1–2.5 mm, these 2 internodes collectively less than 1/3 as long as inflorescences; proximal bracts usually bristlelike, occasionally leaflike, much longer than inflorescences. Spikes (4–) 6–17, densely aggregated, usually individually indistinct, broadly ovoid to ovoid, 4.7–9 (–12) × 3.7–7.6 mm, appearing coarse-textured, base rounded to acute, apex truncate to acute. Pistillate scales pale green or straw colored to brown or reddish, often with green to straw colored midstripe, ovate to broadly ovate, 2.2–4.7 mm, shorter to slightly longer than perigynia, less than or equal in width, margin white, 0–0.2 mm wide, apex obtuse to awned. Perigynia ascending, green or straw colored to light or coppery brown, conspicuously 4–9-veined abaxially, conspicuous 0–4 (–9) -veined adaxially, veins thin, reaching top of achene, ovate to broadly ovate, planoconvex or biconvex, (2.6–) 3.3–4 (–4.6) × (1.2–) 1.4–1.6 (–2) mm, 0.6–0.7 mm thick, 2.1–2.7 times as long as wide, margin flat, including wing 0.1–0.3 (–0.4) mm wide, ciliate-serrulate on distal body, often with metallic sheen; beak brown or gold at tip, cylindric, unwinged, abaxial suture inconspicuous, distance from beak tip to achene 1.2–1.8 mm, ± entire for (0–) 0.3–0.7 mm. Achenes usually ovate to broadly ovate, (1.3–) 1.5–1.9 × (0.9–) 1–1.2 (–1.4) mm, 0.5–0.7 mm thick.


Phenology: Fruiting spring–summer.
Habitat: Moist to wet or boggy marshes, open areas near the coast
Elevation: 0–600 m

Discussion

Selected References

None.

Lower Taxa

None.

"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property."not undefined" is not a number.

... more about "Carex harfordii"
usually ovate;broadly ovate +
smaller +
0.5mm +  and 0.7mm +
bidentatate +
papillose +
Joy Mastrogiuseppe +, Paul E. Rothrock +, A. C. Dibble +  and A. A. Reznicek +
Mackenzie +
shortened +
persistent +
tapering +  and rounded +
not enlarged +
coarse-textured +
Gold (?) +  and Brown (?) +
cylindric +
15 cm150 mm <br />0.15 m <br /> (35 cm350 mm <br />0.35 m <br />) +
2 (?) +  and 4 (?) +
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 +
0.5 cm5 mm <br />0.005 m <br /> (0.99 cm9.9 mm <br />0.0099 m <br />) +
round +  and trigonous +
50 cm500 mm <br />0.5 m <br /> (135 cm1,350 mm <br />1.35 m <br />) +
2mm;5mm +
0.2 cm2 mm <br />0.002 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0–600 m +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
Moist to wet or boggy marshes, open areas near the coast +
brown +  and gold +
0 +  and 1/3 +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not prophyllate +, sessile +  and pistillate +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
basal +  and cauline +
0.1mm +  and 0.3mm +
green +  and straw colored +
with (1-)3-6(-30) bristles and/or scales +
0-4(-9)-veined +  and 4-9-veined +
straw colored +  and light or coppery brown +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Bull. Torrey Bot. Club +
adventitious +
straw colored +  and brown or reddish +
slightly longer +
basal +  and proximal +
ovate;broadly ovate +
shorter to slightly +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.47 cm4.7 mm <br />0.0047 m <br />) +
equal width +  and less in than +
herbaceous +  and membranous +
not differentiated +
cylindric +
Illustrated +  and Endemic +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.47 cm4.7 mm <br />0.0047 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
rounded;acute +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
1 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +  and persistent +
2-3(-4)-fid +
prolonged +
u--shaped +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Carex montereyensis +
Carex harfordii +
Carex sect. Ovales +
species +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
plant +  and cespitose +