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Photo LibraryGrowth Stages
Stage 3: R-1

The terminal bud forms a miniature floral head rather than a cluster of leaves. When viewed from directly above the immature bracts form a many-pointed star-like appearance.

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R-1 Stage

Name: R-1 Stage
Description: Sunflower plant in R-1 stage
ID Name: SUN111308E
Credits: NDSU Ext. Bulletin 25
Size: 101K

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