• 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 dictyotum A. Gray  

No occurrences found

Family: Brassicaceae
alkali pepperweed
Images
not available
  • FNA
  • Resources
Ihsan A. Al-Shehbaz, John F. Gaskin in Flora of North America (vol. 7)
Annuals; hirsute. Stems few to several from base, erect to ascending, or (outer ones) decumbent, unbranched, (0.15-) 0.3-1.3(-2.1) dm. Basal leaves (soon withered); not rosulate; petiole 0.5-2 cm; blade pinnatifid to pinnatisect (lobes linear to narrowly oblong), (1.5-)2.2-5.7(-7) cm × (0.5-)1-2(-3) mm, margins entire. Cauline leaves sessile; blade usually linear, rarely with linear lobes, 1-5 cm × 0.5-2 mm, base attenuate, not auriculate, margins entire. Racemes elongated, (dense) in fruit; rachis hirsute, trichomes straight, cylindrical. Fruiting pedicels erect to slightly ascending, straight and appressed to rachis or distally slightly recurved, (strongly flattened), (1.6-) 1.9-2.5(-3) × 0.4-0.8 mm (width proximal to apex), usually hirsute or, rarely, only adaxially. Flowers: sepals oblong to ovate, 0.7-1.1 × 0.2-0.6 mm; petals absent; stamens 4, median; filaments 0.5-1 mm; anthers ca. 0.1 mm. Fruits ovate, 2.5-3.5 × 2-2.8 mm, apically winged, apical notch (closed, often U-shaped), 0.5-0.7(-0.8) mm deep; valves thin, smooth, strongly reticulate-veined, usually hirsute, rarely glabrous; style absent or obsolete, included in apical notch. Seeds ovate, 1.2-1.8 × 0.8-1.2 mm. Flowering Mar-Jun. Margins of playas, saline areas, meadows, gypsum hills, dried pools, alkaline and clay flats and sinks, near hot springs, roadsides, borders of springs and ponds, sandy flats; 0-1600 m; Calif., Idaho, Nev., Oreg., Utah, Wash.; Mexico (Baja California).
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.