| Plant Category | : | Tree |
| Melghat's Flora's Serial No. | : | |
| Synonym | : | |
| Plant Common Name | : | Silver oak, Silk oak • Manipuri: Koubila • Bengali: Rupasi • Tamil: Savukku-maram |
| Plant Family | : | PROTEACEAE |
| Description | : | A handsomely straight evergreen tree, 10-25 m tall. Leaves 15-33 cm long; leaflets 7-19, 3-12 cm long, sessile, entire or pinnatifid, olive green above, silver grey silky hairy beneath; margin recurved. Racemes 5-15 cm long, appearing on the old wood, solitary, 2 or a few forming a panicle. Flowers solitary, in twos or threes; pedicel 1-1.5 cm long, glabrous, leaving a permanent white lenticular scar. Sepals 1.5-2 cm long, hooded, at first all fused together except on one side, later on fused in twos basally and apically, free for the greater length in the middle, these pairs in their turn free from each other or slightly fused above, orange yellow to orange or golden yellow to lemon yellow with dark red inner base. Stamens sessile; connective not produced beyond the anther cells; anthers about 1 mm long. Disc semi-annular. Gynophore about 2-3 mm long. Ovary glabrous; style lemon yellow, 1-2.5 cm long, dilated at the apex and bearing a greenish-yellow 1 mm long stigmatic cone. Follicle 2-seeded, 1.5-2. cm long, about 1 cm broad, silver grey to olive green, dehiscent. Seeds 1-1.5 cm long, 0.5-1 cm broad, broadly winged, thin, ovate, non-endospermic. Fl. Per: March-April. |
| Plant Location in Melghat | : | |
| Medicinal Use / Activity | : | cytotoxic, thrombolytic and membrane stabilizing activities. |
| Plant's Phytochemicals | : | COMPOUNDS: Dehydrobisgravillol; Hydroxytyrosol; kojic acid; resorcinol;
gravicycle; dehydrogravicycle; bisgravillol; dehydro-bisgravillol; dehydrograviphane; methyldehydro-graviphane; rutin; ACTIVE COMPOUNDS (1): Rutin; |
| Plant's Current Status | : | |
| Plant's Cross Database Reference | : | 259142 |
| Reference | : | Prabha Y. Bhogaonkar and Pankaj A. Dhole; "Checklist of Flora of Melghat"; Chief Conservator of Forest & Field Director, Melghat Tiger Project, Camp, Amravati (2018 - 2019); Book |
| Reference | : | ~ Prabha Y. Bhogaonkar and Pankaj A. Dhole; "Checklist of Flora of Melghat"; Chief Conservator of Forest & Field Director, Melghat Tiger Project, Camp, Amravati
(2018 - 2019); Book PMID : |
| Kingdom | : Plantae - Plants |
|---|---|
| Phylum | : Tracheophyta |
| Subkingdom | : Tracheobionta - Vascular plants |
| Superdivision | : Spermatophyta - Seed plants |
| Division | : Magnoliophyta - Flowering plants |
| Class | : Magnoliopsida - Dicotyledons |
| Subclass | : Rosidae |
| Order | : Proteales |
| Family | : Proteaceae - Protea family |
| Genus | : Grevillea R. Br. ex Knight - grevillea |
| Species | : Grevillea robusta A. Cunn. ex R. Br. - silkoak |
