Home Flora of Pakistan
Home
Name Search
Families
Genera
Species
District Map
Grid Map
Inventory Project
Grevillea robusta A. Cunn. ex R. Br. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Supplementum primum prodromi florae Novae Hollandiae 24. 1830. (Suppl. Prodr. Fl. Nov. Holl.) Name publication detail
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Flower/Fruit: Fl. Per: March-April.
Type: Type: Described from Australia
Distribution: Distribution:- Silver or silky oak, an endemic of E. Australia, is extensively cultivated in tropics and sub-tropics as an ornamental, road-side tree and as a shade or wind break tree in tea and coffee gardens. Cultivated throughout Pakistan since long, especially in cantonments and satellite towns. It has recently been planted in large numbers in Islamabad.
Comment/Acknowledgements: Wood is used in furniture and panelling. Fruits and seeds contain Cyanophoric glucosides.
Photo: Grevillea robusta A. Cunn. ex R. Br. (Photo)
Map Location: B-6 Peshawar Dist : Peshawar University Campus Nasib Khan, s.n. (P. F. I-B);C-7 Rawalpindi Dist: Islamabad, S. A. Khan, s. n. (P. F. I-B); D-8 Lahore Dist: Lahore, A. H. Khan, s. n. (P.F.I-B); Jinnah Gardens, S. B. Akhtar, s. n. (P. F. I-B).

 

Export To PDF Export To Word
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.
 
 
© 2020 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110