Haryana Forest Flora
A Comprehensive Database of Ligneous Plants of Haryana (India)
Designed & Developed by Bioinformatics Centre,Forest Research Institute, Dehradun

Complete Taxonomic details of Species: Euphorbia royleana Boissier in DC.

Family: Euphorbiaceae Genus: Euphorbia Species: Euphorbia royleana Boissier in DC.( थोक, सुराई )






Synonym Euphorbia pentagona Royle, nom. illeg. Flower Color Yellow - Orange
Common Name Thok, Sulla, Surai Flower Type Cyme
English / Trade Name Danda Thor, Churee, Royle's Spurge Flowering Period Jan-March
Vernacular /Local Name Thok, Surai Fruiting Period April-June
Altitude Upto 1800 m Fruit Type Capsule
Habit Shrub Fruit Details Capsules trigonous, glabrous, stalked.
Habitat Exposed dry slopes, rocky and grassy localities. Bark Type Prickly
Distribution In the Himalayas, from Pakistan to E. Nepal Bark Details Stout trunk and many thick fleshy branches with 5-7 thick, wavy, winged ridges armed with pairs of thorns on their margins.
Distribution in Haryana M. Garh, Mewat, Morni-Pinjore, Rewari, Yamuna Nagar Origin Native
    Leaf Type Simple
    Leaf Arrangement Alternate (leaves born singly along stem)
    Leaf Shape Obovate
Description of Species Perennial, armed, cactus like shrubs; stem with fleshy pith, branches in whorls, 5-7 angled, ridges with stipular spines. Leaves few, sessile, alternate, spathulate, green, fleshy, 4-10 cm long, caduceus. Involucres hemispheric, ca 1.2 cm across, greenish-yellow, sessile, arrangead in axillary cymes; lobes 4, spathulate, fringed. Capsules trigonous, glabrous, stalked. Leaf Details Leaves few, sessile, alternate, spathulate, green, fleshy, 4-10 cm long, caduceus.

Specimen's Details / Live Plants Details