Euphorbia beharensis aka Euphorbia Beharensis

Euphorbia beharensis is a shrub in the Euphorbiaceae family. It is partly succulent. It grows wild only in south and southwest Madagascar. Its range takes in Taolanaro, Androy, and Tulear. Its name comes from Behara, a place in southern Madagascar. It grows in dry bush and open Didiereaceae forest. Its roots grow in sand over gneiss rock. Kew puts it in the desert or dry shrubland biome.

The plant has many thin branches and thick, tuberous roots. Its swollen base is called a caudex. This can reach 0.20 feet [0.06 metres] across. Branches reach about 1.31 feet [0.40 metres] long. That length does not tell us the plant's full height. Stems are just 0.010–0.016 feet [0.003–0.005 metres] thick. These thin stems contrast with the swollen root base. Stipular spines reach about 0.05 feet [0.015 metres] long. They line the branches, and each has a broad base.

Small green leaves grow near the branch tips. They are ovate, or egg-shaped. Their edges may have slight waves. Each leaf has almost no stalk. Leaves reach about 0.026 feet [0.008 metres] long. They reach about 0.013 feet [0.004 metres] wide. They are deciduous: they fall rather than stay year-round. Small green flower groups form near the branch tips too. These groups, called cymes, have short stalks. They split into two or three branches. The tiny flower structures are called cyathia. They measure about 0.007 feet [0.002 metres] across. Spreading parts called cyathophylls grow around them. Their nectar glands have two lips.

When grown in care, this species grows fast for its group. LLIFLE ranks it among the easier shrubby tropical euphorbias. Most plants in care grow in specialist collections. It accepts full sun or bright shade. Move plants grown in shade into stronger sun in stages. A sudden move to full sun can cause bad scorching. You can water it on a set basis if the growing medium drains well. Give it a deep watering. Then let the medium dry a bit before you water again.

Wild plants face threats across a range split into parts. Fire and damage threaten the places where they grow. People also clear land for charcoal, which adds pressure. Taking plants from the wild to grow them poses another threat. These threats affect wild plants, though growers keep it in collections.