Flower to nearly 5½ inches (14 cm) across. Inner petals obovate, dark red with lighter midrib and narrow orange or light red basal stripe. Outer petals slightly paler, with pinkish-purple midstripe. Sepals sometimes entirely pinkish-purple. Filaments dark red to pinkish-red, anthers contrasting cream-colored. Stem semicolumnar, to 3½ inches (9 cm) in diameter; central spines to ⅝ inch (15 mm) long. Named for the supergiant red star, Antares. ISI 2000-2; HBG 85176, Schick 1619-45.
