Flora of the Hawaiian Islands
Dicotyledon Literature for Morinda citrifolia
Wagner et al., 1990, 1999; Lorence & Wagner, 2020.
   Rubiaceae -- The Coffee Family Bibliography
      Morinda citrifolia

Common name(s): Indian mulbery, noni
General Information
DistributionNative from SE Asia to Australia, Micronesia, and other Pacific islands, now pantropical.In the Hawaiian Islands, a Polynesian introduction on Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i.

Shrub or small tree, 3‒6 m tall; stems 4-angled, glabrous.
Leaves petiolate; blade glossy, membranous, elliptic to elliptic-ovate, 20‒45 cm long, 7‒25 cm wide, glabrous; petiole stout, 1.5‒2 cm long; stipules connate or distinct, 10‒12 mm long, obtuse, apex entire or 2‒3-lobed.
Inflorescences an ovoid to globose head, ca. 75‒90-flowered, peduncle 10‒30 mm long. Flowers perfect; calyx a truncate rim; corolla white, 5-lobed, tube greenish white, 7‒9 mm long, lobes elliptic or oblong-deltate, ca. 7 mm long; stamens 5, scarcely exserted; style ca. 15 mm long.
Syncarps greenish or yellowish white, fleshy, ovoid-subglobose, 5‒10 cm long, 3‒4 cm in diameter, soft and foetid when ripe.
Pyrenes ovoid, whitish, 6‒7 mm long, with a distinct air chamber.
2n = 22, 44.
David Lorence