Q: I realize you don't have all the answers, but please listen to this. Just north of Yountville I saw a spread of yellow madia. What makes this plant unique is this: (1) It has two colors of flowers, ...

A reader wrote to ask about autumn-blooming plants for the garden. What a timely question. By some standards, it's fall already in the natural world: Shorebirds and seabirds have been migrating for ...

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Billy Krimmel at the University of Califrnia, Davis, and Ian Pearse at Cornell University in Ithaca, New York, report that sticky, hair-like trichomes on common tarweed (Madia elegans) trap small ...

Through at least October, these sticky, fragrant wildflowers hold sway on roadsides and hillsides. After the Farewell-to-Spring or Clarkia finish blooming, many think the summer is devoid of annual ...

Thirteen species of California annuals were grown under twelve different controlled conditions of temperature and photoperiod in air-conditioned greenhouses. All but two of these annuals proved to be ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...