Euphorbia polygona var. major - Kruidfontein north of Willowmore

A large growing Euphorbia polygona from the Horrida group. A few plants are man height most are smaller. It has formidable thorns.

Mr. Gerhard Marx posing with one of the clumps.

A well grown plant in cultivation at the home of Mr. Gerhard Marx.

A picture of an old poster. These plants were exceptionally large. The larger one was man height.

Euphorbia polygona var. major - North of Willowmore

Some 30 km north of Willowmore a robust variety of  Euphorbia polygone (horrida group) grows. Some plants are about man height while others are smaller. The involucre glands are purple.

A plant in the collection of Gerhard Marx.

Euphorbia polygona var 030520D

A plant I bought years ago from Shielam Nurseries near Robertson as Euphorbia polygona (then horrida) var striata. 

The involucre grands are purple but the horizontal stripes are not as prominent as var striata. No locality data given. 

It is one of probably numerous forms that do not fit in properly in existing created taxa.

The plants are of medium size and rarely grow higher than about knee height. It belongs to the Horrida group.

Euphorbia polygona var. alba

Classified by Detlef H Schnabel

Reference: https://www.euphorbia-polygona.de/

A very attractive white variety of  Haworthia polygona (This one is from the Horrida group). It is found in a small area north of Uniondale.

It is rather useful that a number of E polygona forms now have varietal status.

Habitat photographs by Mr. Gerhard Marx