Flowers mentioned in the Old Testament have often been used as images of Jesus. “Lily of the valley” and ”the rose of Sharon” come to mind. I haven’t done an in depth study on seeing Christ in the flora of the Bible. But I’m sure it would be interesting. Below is a poem I wrote about 20 years ago in which I see the cross in a flower.
Desert Flower A stigma marks its center. Tipped by piercing red, each petal is stretched in the agony of full-bloom. Dew rolls off into empty space, like sweat or a tear-drop, and splashes on the stony, bony ground. Impaled on its own stem, it arches like a man on the rack and shudders in the sun forsaken.