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The common sunflowers we see in cut flower bouquets are annuals, as are the sunflowers grown for seeds, but other species are perennials. ... Related: 25 Best Native Plants for Attracting Birds to ...
A few farms in Southern California grow fields of sunflowers for wandering and picking, with flowers blooming from summer into fall, including Tanaka Farms' Hana Field in Costa Mesa, the Pumpkin ...
The inflorescence holds several flower heads. Each head is supported by a base covered in long, pointed phyllaries that bend back as the head ages and develops fruit. The flower head has a fringe of golden yellow ray florets , each two to three centimeters ( 3 ⁄ 4 – 1 + 1 ⁄ 4 in) long, and a center filled with curly yellow and brown disc ...
California also has 1,023 species of non-native plants, some now problematic invasive species, such as yellow star-thistle, that were introduced during the Spanish colonization, the California Gold Rush, and subsequent immigrations and import trading of the 18th, 19th and 20th centuries.
Geraea canescens, commonly known as desert sunflower, hairy desert sunflower, or desert gold, is an annual plant in the family Asteraceae. The genus name comes from the Greek geraios ("old man"), referring to the white hairs on the fruits. [2] G. canescens bears yellow sunflower-like flowers on slender, hairy stems. It grows 0.30–0.91 metres ...
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Globally, sunflowers are the fourth most important oil crop. Most of the sunflower seed crop is crushed for oil, and most of the oil is consumed by humans. A major byproduct of crushing is protein-rich cake, an excellent feed for livestock. A tiny proportion of the global sunflower crop is directly eaten as “nuts” or kernels.
The flora are arranged in several sublists with different organizations for the convenience of encyclopedia users with different purposes - alphabetically by scientific name, alphabetically by plant family then by scientific name, by growth pattern (e.g., tree, shrub, perennial, annual, etc.) then alphabetically by scientific name, by flower ...