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'''Pandanus utilis''', is the common screwpine is, despite its name, a monocot and not a pine. It is native to Madagascar and naturalised in Mauritius and the Seychelles.

{{Uses|treatment of migraineMigraine}}.

utilis Utilis leaves, 19 compounds were obtained, consisting of seven triterpenoids (1-7), five steroids (8-12), four cyclohexenone derivatives (13-16), two benzenoid glycosides (17 and 18), and one lignan (19).<ref name="chemical composition"/>

{{Leaf|Simple|Leaves arranged spirally in 3 series|crowded towards the top of stems, simple, without petiole but with broad clasping base, linear, up to 2 m long, but shorter on old trees, 3–11 cm broad, tapering in a long point at apex.}}<ref name="Leaf"/>

{{Flower|Unisexual||cream Cream white||male Male flowers odorous, with 8–12 stamens inserted pseudo-umbellately on slender columnal excrescences 10–15 mm long; female flowers with 3–8-celled ovary crowned by a sessile stigma.}}

{{Fruit|Simple Fruit|domeDome-shaped, compressed, angular drupe arranged in a pendulous, long-peduncled|subglobose Subglobose syncarp 15–20 cm in diameter, consisting of up to 200 drupes, each up to 3.5 cm × 4 cm × 2 cm, pyrene 3–8-celled, containing several seeds. Seeds endospermous, retained within the endocarp.|yellow when ripe, upper half free, base with a purple or red band|}}

Pandanus utilis can be propagated by seeds, but these are recalcitrant. Pre-soaking of the seeds for 24 hours before sowing is recommended for Pandanus in general. The germination rate is usually over 50%. Seedlings emerge about 4 months after sowing. After 12–16 months they are 20–40 cm tall and ready to be planted out. Propagation by stem cuttings and suckers is also possible. In Réunion, planting in April or May at spacings of 1.5–3 m is recommended.<ref name="How to plant/cultivate"/>

* [https://uses.plantnet-project.org/en/Pandanus_utilis_(PROTA)#:~:text=Recorded%20medicinal%20uses%20are%20quite,forehead%20for%20the%20treatment%20of Pandanus utilison plantnet projects]