This pattern is from the book Crochet in Color which is available as an eBook.

The long color repeats of these Noro fiber-dyed yarns make this scarf gloriously colorful and also make it look more complicated than it really is. There are only two different colorways used, one for the large flowers and one for the small flowers. Both of the flower motifs are quite simple to make, yet the colors of the yarn change from pale gold to pink, purple, and green, and end with brown, giving the motifs more depth. You’d be just as successful
choosing two colorways of blue and yellow or red, orange, and brown.

GAUGE
Each Large Flower measures 41?2” (11.5 cm) square after washing.