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Xylopia aethiopica (Dunal) A. Rich. - Annonaceae - Ethiopian pepper, Grains of Selim, Senegal pepper, negro pepper
Mohrenpfeffer, Senegalpfeffer, Selimskörner, Kanipfeffer
Evergreen tree, 15-30m tall, native to Africa; bark grey-brown; branches red-brown to blackish; leaves oblong-elliptic to ovate, 8-16.5cm long, leathery, bluish-green and hairless above, covered in brown appressed hairs below, margin entire; petiole short and thick, usually dark-coloured; fowers solitary or in 2-5-flowered clusters, greenish-white to yellow, strongly scented; fruit of many cylindric carpels, up to 6 cm long, green or reddish.
https://www.zambiaflora.com/speciesdata/species.php?species_id=123860
http://tropical.theferns.info/viewtropical.php?id=Xylopia+aethiopica
„Sensory quality [of the fruits]: Aromatic, quite pungent and slightly bitter, comparable to a mixture of cubeb pepper and nutmeg… Negro pepper is often smoked during the drying process which results in an attractive smoky-spicy flavour.“
http://gernot-katzers-spice-pages.com/engl/Xylo_aet.html
AEDA of a solvent extract of the ground, dried, smoked fruits of Xylopia aethiopica (extracted with solvent mixture of methanol, water, and dichloromethane, 2-4.5%) showed linalool (FD 8192) to be the most intense component giving the pepperish note. The other most important odorants present in the volatile oil of the fruit were (E)-β-ocimene (flowery, FD 2048), α-farnesene (sweet flowery, FD 2048), β-pinene (terpeny, FD 512), α-pinene (terpeny, FD 1024), myrtenol (floweery, FD 512), and β-phellandrene (terpeny, FD 128). Non-terpenic odor-active compounds were 3-ethylphenol (phenolic, FD 128), vanilline (vanilla, FD 128), hexanoic acid (acidic, FD 8), and 4-ethyl-2-methoxyphenol (smoky, FD 4). The phenolic odor of 3-ethylphenol and the vanilla-like of vanilline are very easily noticed during the sniffing experiments even though these compounds appeared only in traces.
[Tairu, A. O., T. Hofmann, and P. Schieberle. „Identification of the key aroma compound in dried fruits of Xylopia aethiopica.“ PerspectiVes on new crops and new uses (1999): 474-478] https://hort.purdue.edu/newcrop/proceedings1999/pdf/v4-474.pdf