SPECIES DESCRIPTION
EUPHORBIA  ACANTHOTHAMNOS

Family and Genus:- See- EUPHORBIACEAE/Subgen. ESULA/Sect.
HELIOSCOPIA

Common Names:- Greek spiny spurge

Homotypic Synonyms:- Tithymalus acanthothamnos

Meaning:- Euphorbia (L) For Euphorbus, physician to the King of Mauritania.
                  Acanthothamnos (Gr) Thorn bush.

General description:- Glabrous, intricately branched shrub 10-30 cm, with the
branches usually terminating in paired spines formed from the indurated, forked
rays of the umbels. Perennial.

Leaves:-
1) Cauline, and ray-leaves, elliptical to elliptic-obovate, obtuse or acute, entire.
2) Raylet-leaves, cuneate-obovate, yellow.

Flowers:-
1) Radially symmetrical, orange yellow, joined together in umbels with 3 or 4 rays.
2) Bracts, gilded yellow wider and shorter than the underlying leaf.
3) Rays, 3(-4).

Fruit:-
1) Capsule, 3-4 mm, sulcate, with short, conical tubercles.
2) Seeds, 2 mm, smooth, brown.

Key features:-
1) Capsule, not cristate, with elongated or hemispherical tubercles.
2) Shrubs, with slender stems.
3) Rays, of the umbel and dead twigs persistent.
4) Seeds, smooth or nearly so.

Click here for a glossary of terms used.

Habitat:- This summer-deciduous “spiny shrub” is an important constituent of open
dry shrubby vegetation of, hot and rocky slopes near the sea, generally, 0-2000 m.

Distribution:- Almost a Greek endemic, but just extending to SW Anatolia.
Widespread and common on Crete.

Flowering time:- Mar-May.

Photos by:- Steve Lenton