Euphorbia myrsinites have spirally arranged grey-green leaves and clusters of greenish-yellow flowers.
Gopher spurge, Euphorbia lathyris, which has leaves with a white midrib and small green flowers, is reputed to repel burrowing rodents in the garden.
The Mediterranean spurge, Euphorbia characias, grows to 3 feet or more, with erect woody stems, long linear leaves, and dense showy inflorescences of yellow flowers.
Many cultivars of this species, including a variegated form, are also available.