Glaucous sedge (Carex flacca)

Glaucous sedge (Carex flacca)

Description

Title:
Glaucous sedge (Carex flacca)
Caption / Description:

Carex flacca (glaucous sedge, blue sedge or carnation-grass) (syn. Carex glauca) is a species of sedge native to parts of Europe and North Africa, and naturalized in eastern North America. It is frequent in a range of habitats, including grassland, moorland, bare ground, and upper edge of salt marsh.

Female spikes are approximately 2–4 cm long and 4–6 mm wide.

Stem leaves are green above, glaucous beneath. Most stems have two male spikes, close together and often looking like one at first glance. Fruits are 2–2½ mm, roundish, with a very short beak, under 0.3 mm. They are densely packed on the spike, not loose and gappy like Carex panicea.

The lowest bract is about as long as the inflorescence on average. Female spikes are typically two, and can be short-stalked and upright, or longer-stalked and nodding.

Tags / Keywords:
  • Biota
  • Life
  • Vitae
  • Eukaryota
  • Plantae
  • Plants
  • Magnoliophyta
  • Flowering Plants
  • Angiosperms
  • Liliopsida
  • Monocotyledons
  • Poales
  • Cyperaceae
  • Sedges
  • Carex
  • True Sedges
  • Carex flacca
  • Glaucous sedge
  • Blue sedge
  • Carnation-grass

Admin

Date Original Photo Taken:
Original File Name:
_MG_9368-9.psd
Event:
Rating:
Date this image added/last updated on website:
Original File Dimensions:
2848px x 3967px
File Type:
JPEG
Color Mode:
RGB
Original Image Color Profile:
Adobe RGB (1998)

Location

Location Created:
Sublocation:
City:
Market Harborough
Province/State:
Leicestershire
Country:
United Kingdom
World Region:
Europe
Geo-location:
52.474908489569, -0.950077164336 View on map

Rights

Copyright Status:
Copyrighted
Licensing Status:
Rights Managed
Available for Editorial Use:
Yes
Available for Commercial Use:
Yes
Copyright Notice:
© 2010 Dave Kennard

Camera Data

Date Digital Resource was created:
Shutter speed:
1200 s
Aperture:
f/4.5
Camera Model:
Canon EOS 450D
ISO:
100
Exposure Compensation:
0
Focal Length:
100mm
Focal Length (35mm equiv.):
Metering Mode:
Multi-segment
Flash:
Off, Did not fire
Exposure Mode:
Manual
White Balance:
Manual
Light Source:
Exposure Program:
Manual

Additional shooting metadata

Lens:
Canon EF 100mm F2.8 Macro USM
Filters used:
Additional Optics used:
Setup:
Handheld, 2 shots

Post Processing

Image Modified:
Software used:
  • Adobe Photoshop CS4
  • Adobe Camera RAW
Post Processing:

CR2s converted in ACR
Images stacked for focus in PS CS4
Curves adjustment to increase contrast selectively applied in PS CS4
Bottom of image cropped off in PS CS4