Sunflower seed

Left: dehulled kernel. Right: whole seed with hull

Roasted and salted sunflower kernels used as a snack food

Cross-section of a sunflower husk under an optical microscope (polarized light, magnification 100x):
1. Internal parenchyma
2. Sclerenchyma
3. Phytomelanin layer
4. Epidermis and cuticle

The sunflower seed is the fruit of the sunflower (Helianthus annuus). The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is a cypsela. When dehulled, the edible remainder is called the sunflower kernel or heart.

单词	Polly seed
释义	Polly seed 英语百科 Sunflower seed The sunflower seed is the fruit of the sunflower (Helianthus annuus). The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is a cypsela. When dehulled, the edible remainder is called the sunflower kernel or heart.
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Polly seed

Sunflower seed