Systematics of Amsinckiinae (Boraginaceae): The Popcorn Flowers

Distribution mapping and Taxa Lists:
      BajaFlora (Baja California, Mexico)
      BONAP, The Biota of North America Program (J. T. Kartesz)
      Consortium of California Herbaria: CCH1 (California only)/ CCH2 (worldwide)
      Flora del Cono Sur
      GBIF: Global Biodiversity Information Facility
      Jepson eFlora & The Jepson Interchange (California)
      San Diego County Plant Atlas (San Diego County, California)
      SEINet (Multiple herbaria)
      USDA Natural Resources Conservation Service

Images:
      CalPhotos Database of Plant Images

Nomenclature and Botanical Names:
      California Plant Names (Michael Charters)
      Plants of the World Online
      The International Plant Names Index (ipni)
      The Plant List

General:
      Plant Systematics Resources