Agoseris grandiflora Agoseris grandiflora fruits with mm ruler on right. Agoseris grandiflora fruits with mm ruler on right. Agoseris grandiflora seedling with cotyledons (seed leaves). Agoseris grandiflora seedlings germinated within a growth chamber set at a 25/15°C (77/59°F) day/night temperature with a 12-hour day photoperiod of cool-white fluorescent light. Agoseris grandiflora seedlings growing in 48-cell liners at the Berry Seed Bank research greenhouse located in Portland, Oregon. Agoseris grandiflora seedlings growing in 48-cell liners at the Berry Seed Bank research greenhouse located in Portland, Oregon. Agoseris grandiflora with rootball for seedlings growing in 48-cell liners at the Berry Seed Bank research greenhouse in Portland, Oregon. Agoseris grandiflora with rootball for seedlings growing in 48-cell liners at the Berry Seed Bank research greenhouse in Portland, Oregon. Agoseris grandiflora roots.