A tiny, woolly flower found hiding in Texas’s Big Bend National Park shows the intriguing strangeness of sunflowers ...

What are ways species exchange genes with each other? Hybridization and gene flow are shortcuts to biodiversity that don’t always involve differentiation.

Everyone loves big, beautiful sunflowers (Helianthus annuus), right ... though. Luckily, a species called the junior yellow hybrid sunflower is available now, which, in addition to being pollen ...

Populations inhabiting two sites near Boulder, Colorado were associated with the sunflower, Helianthus pumilus. This leads one to suspect that among the 13 species of Helianthus distributed on the ...