| Synonyms: | Androstachys subpeltatus (Sim) Phillips Weihea subpeltata Sim | 
| Common names: | Lebombo ironwood (English) Simbi-tree (English) | 
| Frequency: | Locally common | 
| Status: | Native | 
| Description: | Medium-sized, evergreen tree. Bark distinctive and rough; young branchlets densely covered in whitish, woolly hairs. Leaves opposite with pairs clearly set at right angles, ovate to heart-shaped, green to blue-green above, covered in dense white woolly hairs below; margin entire. Flowers axillary, unisexual on different trees. Male flowers yellow with a long staminal column; female flowers yellow borne at the end of a long, white, hairy stalk. Fruit a 3-lobed capsule, yellow to reddish-brown. | 
| Type location: | Mozambique | 
| Notes: | The wood is extremely hard and durable and the straight stems of younger trees are often used for building huts. | 
| Derivation of specific name: | johnsonii: after William Henry Johnson (1875-?), Director of Agriculture in the Mozambique Company. | 
| Habitat: | On rocky outcrops and hillsides in deciduous woodland, often forming dense stands. | 
| Altitude range: (metres) | 100 - 900 m | 
| Flowering time: | Oct - Nov | 
| Worldwide distribution: | Mozambique, Zimbabwe,Eswatini, Mpumalanga South Africa and Madagascar. | 
| FZ divisions: | N,MS,GI,M | 
| Growth form(s): | Tree. | 
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species | 
| Images last updated: | Thursday 3 August 2017 | 
| Literature: | Burrows, J.E., Burrows, S.M., Lötter, M.C. & Schmidt, E. (2018). Trees and Shrubs Mozambique Publishing Print Matters (Pty), Cape Town. Page 422. (Includes a picture). Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 251. Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 40. Radcliffe-Smith, A. (1996). Euphorbiaceae Flora Zambesiaca 9(4) Pages 121 - 123. (Includes a picture). |