Euphorbia unicornis R.A. Dyer

Selected images: Click on each image to see a larger version and details of the record View all images (5)

Photo: Ton Rulkens
Melucu district in Cabo Delgado province

Detailed records: Display species records QDS maps by: Google Maps Point records by Google Maps

Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms:
Common names:
Frequency:	Apparently rare and local.
Status:	Native
Description:	Spiny succulent shrublet, up to c. 30 cm high, branching from the base. Branches 6-7-angled withe spine-shields forming continuous ridges, completely covering the plant except for narrow grooves between the ridges. Spines single, 4-6 mm long; prickles small 1-1.5 mm long. Cyathia c. 2 × 3 mm with cup-shaped involucres; glands forming a full circle, deep red.
Type location:	Mozambique
Notes:	Similar to Euphorbia corniculata, which occurs in the same area and habitat. That species is distinguished by the paired, longer spines.
Derivation of specific name:	unicornis: with single spines.
Habitat:	On rocky outcrops.
Altitude range: (metres)	450 - 740 m
Flowering time:
Worldwide distribution:	Only known from a small area in northern Mozambique.
FZ divisions:	N
Growth form(s):	Shrub under 2 m.
Endemic status:	Endemic
Red data list status:	Vulnerable
Insects associated with this species:
Spot characters:	Display spot characters for this species
Images last updated:	Thursday 27 October 2016
Literature:	Carter, S. & Leach, L.C. (2001). Euphorbiaceae: subfamily Euphorbioideae: tribe Euphorbieae Flora Zambesiaca 9(5) Page 433. Darbyshire, I., Timberlake, J., Osborne, J., Rokni, S., Matimele, H., Langa. C., Datizua, C., de Sousa, C., Alves, T., Massingue, A., Hadj-Hammou, J., Dhanda, S., Shah, T., Wursten, B. (2019). The endemic plants of Mozambique: diversity and conservation status Phytotaxa 136 Page 84.

Other sources of information about Euphorbia unicornis:

External websites:

African Plants: A Photo Guide (Senckenberg): Euphorbia unicornis
African Plant Database: Euphorbia unicornis
BHL (Biodiversity Heritage Library): Euphorbia unicornis
EOL (Encyclopedia of Life): Euphorbia unicornis
GBIF (Global Biodiversity Information Facility): Euphorbia unicornis
Google: Web - Images - Scholar
iNaturalist: Euphorbia unicornis
IPNI (International Plant Names Index): Euphorbia unicornis
JSTOR Plant Science: Euphorbia unicornis
Mansfeld World Database of Agricultural and Horticultural Crops: Euphorbia unicornis
Plants of the World Online: Euphorbia unicornis
Tropicos: Euphorbia unicornis
Wikipedia: Euphorbia unicornis