Haryana Forest Flora
A Comprehensive Database of Ligneous Plants of Haryana (India)
Designed & Developed by Bioinformatics Centre,Forest Research Institute, Dehradun
| Family: Proteaceae | Genus: Grevillea | Species: Grevillea robusta A.Cunn. ex R.Br.( सिल्वर ओक ) |
Habit |
Leaf |
Flower |
Fruit |
Bark |
|
|
| Synonym | Grevillea umbratica A. Cunn. ex Meissn, Grevillea venusta A. Cunn. ex Meissn., Stylurus robusta (A. Cunn.) Deg. | Flower Color | Yellow - Orange |
| Common Name | Silver oak | Flower Type | Panicle |
| English / Trade Name | Silk oak, southern silky oak,silky oak,silk-oak grevillea,grevillea,river oak | Flowering Period | Oct-Dec |
| Vernacular /Local Name | Silver oak | Fruiting Period | Jan-March |
| Altitude | 2300 m | Fruit Type | Follicle |
| Habit | Tree | Fruit Details | Fruits podlike, broad, slightly flattened (boat shaped), 2 cm long, black with long slender stalk and long, threadlike, curved style; 1 or 2 seeds, 10- 13 mm long |
| Habitat | Occurs in riverine rainforest and semi-deciduous | Bark Type | Fissured |
| Distribution | Native to Australia and exotic to India China, Eritrea, Ethiopia, Indonesia, Jamaica, Kenya, Laos, Malawi, Malaysia, Mauritius, Nepal, Pakistan, Philippines, South Africa, Sri Lanka | Bark Details | Bark fissured, sometimes pustulate, dark grey to dark brown, inner bark reddish-brown |
| Distribution in Haryana | Karnal, Kurukshetra, Morni-Pinjore, Panipat, Sonepat | Origin | Native |
| Leaf Type | Compound | ||
| Leaf Arrangement | Alternate (leaves born singly along stem) | ||
| Leaf Shape | Pinnate | ||
| Description of Species | It is a deciduous medium-sized to large tree 12-25 (max.40) m tall; crown conical, dense with branches projecting upwards bole straight, branchless for up to 15 m, up to 80 (max. 120) cm in diameter, usually without buttresses. | Leaf Details | Leaves alternate, fernlike, pinnately (almost bipinnately) compound, 15-30 cm long, exstipulate; 11-21 pairs side axes (pinnae), 4-9 cm long, deeply divided into narrow, long, pointed lobes 6-12 mm wide |
