Adorn your cushions and throw pillows with cheerful sunflowers surrounded by a checkerboard border.

A Map When you're in San Francisco, in love, and in the doghouse, do what the locals do: bring armloads of relentlessly cheerful sunflowers, bask in forgiveness and never let on that you got them cheap at the Flower Mart.

They were really very fine and abundant, with a blaze of perennial sunflowers behind them.

Perennial sunflower, a new crop in development.

This is a taprooted annual or perennial sunflower growing to a maximum height over one meter.

Perennial sunflowers survive the winter by storing food in underground freezing-tolerant stems called rhizomes.

The perennial sunflowers being developed as an oilseed crop by modern plant breeders may have tubers, but they will probably not be harvested.

Perennial sunflower is a new crop being developed by crossing wild perennial and domestic annual sunflower species.

Perennial sunflower- A perennial oil and seedcrop developed through backcrossing genes with wild sunflower.

Native Americans domesticated the wild perennial sunflower Helianthus tuberosus by selecting individuals with larger tubers.

Native to North America, and sometimes called sunchokes, Jerusalem artichokes are the tubular roots of a perennial sunflower plant.

The sunchoke (Jerusalem artichoke or Helianthus tuberosus) is related to the sunflower, another example of perennial sunflower.

The Maximillian sunflower (Helianthus maximiliani) is one of 38 species of perennial sunflower native to North America.

The Jerusalem artichoke, H. tuberosus, is a perennial sunflower and has the advantage of producing delicious and nourishing tubers, but it is more invasive than Genghis Khan and has no place in a small garden.

Using gains made in scientific knowledge and ability over the past few decades, Land Institute scientists are breeding the annual crop plants wheat, sorghum and sunflower with wild, perennial relatives, thus creating perennial wheat, perennial sorghum and perennial sunflower.