Family • Zingiberaceae - Kolowratia elegans Presl
Other scientific names
|Renealmia gracilis Blanco|
|Renealmia exaltata Blanco|
|Hellenia gracilis Hassk.|
|Alpinia gracilis Rolfe|
|Alpinia elegans K. Schum.|
Additional Sources and Suggested Readings
(2) Pacovatinins A-C, new labdane diterpenoids from the seeds of Renealmia exaltata / Sekiguchi M et al / J Nat Prod. 2001 Aug;64(8):1102-6.
(3) Renealtins A and B, new diarylheptanoids with a tetrahydrofuran ring from the seeds of Renealmia exaltata / Mitshuhiro Sekiguchi et al / J Nat Prod, Vol 65, Maar 2002, pp 375-376
Tagbak is a stout herbaceous plant growing to a height of 2 to 4 meters, with stout rootstocks. Stems are swollen at the base and leafy throughout. Leaves are leathery, spreading or reflexed, oblong-ovate to lanceolate, 25 to 60 cm long, 5 to 20 cm wide with a pointed tip. Petioles are short and stout. Inflorerscence is about 30 cm long, the base of the peduncle having oblong-lanceolate, chartaceous, 8 to 12 cm long bracts. The branches are about 8, scattered, spreading, stout, about 5 cm long, covered with persistent bracts, each branch bearing several flowers, opening one at a time. Calyx is 4 cm long; the corolla , pale straw-colored, about 7 cm long. Capsule is ellipsoid, woody and 3 to 4 cm long, split into 3 valves and crowned by a persistent calyx.
In thickets along streams, at low and medium altitudes.
• Antimicrobial: Studies on the antimicrobial properties of Zingiber purpureum Rosc. and Kolowratia elegans Presl. (Family Zingiberaceae)
• Pacovatinins A-C:: Study isolated three new labdane diterpenoids, pacovatinins A-C from the seeds of the Brazilian plant Renealmia exaltata.
• Renealtins A and B:: Study isolated two new diarylheptanoids, renealtins A and B from the seeds of R exaltata.