• 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
    • Biorepository Staff
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Cerastium maximum L.  

No occurrences found

Family: Caryophyllaceae
great chickweed
[Dichodon maximum (L.) A. & D. Löve]
Images
not available
  • FNA
  • Resources
John K. Morton in Flora of North America (vol. 5)
Plants perennial, subrhizomatous. Stems simple, or few together, erect or ascending, 20-70 cm, proximal internodes moderately pilose, becoming glandular distally; nonflowering, axillary branches usually present; small axillary tufts of leaves absent. Leaves sessile, not marcescent; blade narrowly lanceolate, with prominent midrib, 0.2-1 × 3-12 mm, apex acuminate, ± pubescent on both surfaces, short-ciliate. Inflorescences open or congested, usually 3-10-flowered cymes; bracts normally lanceolate, acuminate, herbaceous, pubescent. Pedicels erect, 2-25(-60) mm, usually ca. 2 times as long as sepals in fruit, glandular-pubescent. Flowers large, conspicuous, more than 2 cm diam.; sepals lanceolate, 8-11(-12) mm, outer sepal margins herbaceous, inner sepal margins narrow, membranous, apex acute, moderately to sparsely glandular-hairy; petals obovate, (15-)18-25 mm, at least 2 times as long as sepals, apex deeply 2-fid; stamens 10; styles 5. Capsules narrowly conic, straight, 15-22 mm, ca. 2 times as long as sepals; teeth 10, erect, short, becoming outwardly coiled. Seeds yellowish brown, round, 2-2.5 mm diam., finely rugose in concentric rings; testa not inflated. 2n = 38. Flowering summer. Open woods, gravel bars, terraces by rivers; 0-1200 m; N.W.T., Yukon; Alaska; Asia. This beautiful species is distinguished by its long, narrowly conic capsule with teeth that coil outward like a watch spring.

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.