Botanical Nut Anatomy & Taxonomy Explorer

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Taxonomy Challenge

Blind Morphological Test: Does the current specimen produce an indehiscent, single-seeded fruit with a fused hard pericarp originating from a compound ovary?

Pericarp / Pod Wall Testa (Seed Coat) Cotyledons Embryonic Axis

Peanut

Arachis hypogaea

Botanical Class	Legume (Fabaceae pod)
Culinary Label	Nut / Oilseed
Edible Structure	Cotyledons & Embryo
Pericarp Type	Spongy / Reticulate Pod
Dehiscence	Dehiscent (Morphologically)

Botanical Fact: Peanuts develop inside underground pods derived from a single-carpel legume ovary, making them true pulses/legumes rather than botanical nuts.

Morphological Classification Comparison

True botanical nuts require a dry, indehiscent, hard pericarp protecting a single seed, originating from a compound ovary. Most culinary nuts violate these criteria.

Specimen	Botanical Category	Fruit Type	Hard Outer Shell Is:	True Nut?

Select Specimen 1 of 8

Taxonomy Challenge

Peanut

Arachis hypogaea: Geocarpic Subterranean Development

Morphological Classification Comparison