• NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Home
  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Datasets
    • Research Datasets and Special Collections
    • Checklist: Research Sites - Invertebrates
    • Checklist: Research Sites - Plants
    • Checklist: Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Sample Archival Request
    • Data Usage Policy
  • Additional Information
    • Tutorials and Help
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Carex albolutescens Schwein.  

No occurrences found

Family: Cyperaceae
greenwhite sedge
Images
not available
  • FNA
  • Gleason & Cronquist
  • Resources
Peter W. Ball & A. A. Reznicek in Flora of North America (vol. 23)
Plants densely cespitose. Culms 25-120 cm; vegetative culms inconspicuous with few leaves clustered at apex. Leaves: sheaths conspicuously green-veined adaxially nearly to apex, narrow hyaline band or sharp Y-shaped region at collar, adaxially firm, summits U-shaped, not prolonged; distal ligules 1.5-4.5 mm; blades 3-5 per fertile culm, 9-25 cm × 2-3.5 mm. Inflorescences erect, open, yellow-green to brown, 1.5-4 cm × 4-12 mm; proximal internode 3-12 mm; 2d internode 3-9 mm; proximal bracts scalelike, with bristle tips, shorter than inflorescences. Spikes 2-8, distinct, ellipsoid to globose, 5-13 × 4-6.5 mm, base acute, apex rounded; staminate portion of well-developed spikes less than 2 mm. Pistillate scales white-hyaline or brown, with green midstripe, broadly lanceolate or ovate, 2.5-3.4 mm, longer and narrower than perigynia, apex acute. Perigynia spreading, green to light brown, conspicuously 4-many-veined on each face, winged to base, obovate, flat except over achene or somewhat plano-convex, 2.6-4.5 × 1.5-2.7 mm, 0.3-0.45 mm thick, margin flat, including wing 0.4-0.7 mm wide; beak pale brown at tip, flat, ciliate-serrulate, abaxial suture with white or brown hyaline margin, distance from beak tip to achene 1-2 mm. Achenes oblong, 1.3-1.7 × 0.75-1 mm, 0.3-0.4 mm thick; styles laterally sinuate. 2n = 66. Fruiting early-mid summer. Acidic swamps, low woods, thickets; 0-300 m; Ala., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Ky., La., Md., Mass., Mich., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., W.Va. Carex albolutescens is easily confused with C. festucacea, which has orbiculate or broadly ovate, plumply plano-convex perignyia bodies, broader (usually more than 1 mm wide), more ovoid achenes, and straight or abaxial-adaxially bent styles (P. E. Rothrock 1991). See note under 146. Carex longii.

Vascular plants of NE US and adjacent Canada
Much like no. 84 [Carex longii Mack]., but the perigynium-beak more slender, spreading, its winged margins not reaching the tip; pistillate scales distally flat and acute, the midrib reaching the tip; style laterally flexuous; 2n=66. Swamps and low woods and thickets; Mass. to Ga., w. to s. Mich., s. Ill., s. Mo., La., and Tex. (C. straminea, misapplied)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Click to Display
0 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.