Psilocybe graveolens is an extremely rare psilocybin mushroom which has psilocybin and psilocin as main active compounds, discovered in the salt marshes or "meadows" of Hackensack, New Jersey. This mushroom is known for its strong and persistent odor.
Cap: (1)2 — 3(4) cm in diameter, convextosubumbonate, umbonate or with a slight depression, glabrous, even to slightly striate at the margin, hygrophanous, brownish to orange brownish, fading to golden yellow to whitish, sometimes with a dark green hue. Flesh whitish to pallid brownish, with a strong unfavorable odor.
Gills: Adnexed, close, yellowish brown to chocolate brown, edges sometimes lighter.
Spore Print: Dark purple brown.
Stipe: (2)4 – 6 cm x 2 – 5 mm, equal or slightly expanding at the base to subulbous, white to brownish, with dark greenish or violaceous tones. stuffed to hollow, fibrillose, with a soon disappearing evanescent annulus, rhizomorphic strands attached to the base.
^Ramírez-Cruz, Virginia; Guzmán, Gastón; Villalobos-Arámbula, Alma Rosa; Rodríguez, Aarón; Matheny, Brandon; Sánchez-García, Marisol; Guzmán-Dávalos, Laura (2013). "Phylogenetic inference and trait evolution of the psychedelic mushroom genus Psilocybe sensu lato (Agaricales)". Botany. 91 (9): 573–591. doi:10.1139/cjb-2013-0070.
