• 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
    • Carabidae Checklists with Keys
    • 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
    • Dataset Publishing
  • Additional Information
    • Tutorials and Help
    • Biorepository Staff
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Lepidium pinnatifidum Ledeb.  

No occurrences found

Family: Brassicaceae
featherleaf pepperweed
Images
not available
  • FNA
  • Resources
Ihsan A. Al-Shehbaz, John F. Gaskin in Flora of North America (vol. 7)
Annuals; puberulent. Stems simple from base, erect, (paniculately) branched beyond base or distally, 2-6 dm. Basal leaves (soon withered, often before anthesis); not rosulate; blade dentate to pinnatifid. Cauline leaves shortly petiolate to subsessile; blade narrowly oblanceolate to linear, 1-3.3 cm × 1-4 mm, base attenuate, not auriculate, margins entire. Racemes (often paniculate), considerably elongated in fruit; rachis glabrous or puberulent, trichomes straight, cylindrical. Fruiting pedicels divaricate-ascending to horizontal, straight, (terete), 2-3.5 × 0.1-0.15 mm, puberulent adaxially. Flowers: sepals oblong, 0.7-0.8 × 0.3-0.4 mm; petals (rudimentary), white, linear, 0.4-0.6 × 0.05-0.1 mm, claw absent; stamens 4, median and lateral; filaments 0.6-0.8 mm; anthers ca. 0.2 mm. Fruits orbicular to broadly elliptic, 1.8-2 × 1.7-1.8 mm, apically not winged, apical notch 0.05-0.1 mm deep; valves thin, smooth, not veined, sparsely pilose; style ca. 0.1 mm, equaling apical notch. Seeds oblong, 1-1.2 × 0.7-0.8 mm. Flowering May-Jun. Waste places, disturbed sites; 0-600 m; introduced, Calif.; e Europe; w Asia. Lepidium pinnatifidum apparently has not become a serious weed of the Californian flora.

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.