Aloe tenuior var. viridifolia, the green-leaf fence-aloe, is a rare plant of mainly the subtropical southeast coast of South Africa. Kirstenbosch has a sign next to this plant in the Garden that says the plant is listed on Appendix II of CITES and may not be traded internationally without a permit.
At least six subspecies of this profusely flowering aloe are mentioned in the literature, although the List of Southern African Succulents of 1997 recognises none of them.
A. tenuior in whatever form is distributed in a broad coastal belt from the Great Fish River in the Eastern Cape to southern KwaZulu-Natal, as well as in a small inland area of Mpumalanga overlapping into neighbouring Swaziland and KwaZulu-Natal.
A. tenuior var. viridiflora is restricted to the Suurberg shale fynbos near the Addo Elephant National Park. It is one of the yellow-flowering varieties, the red one or one of them sometimes called A. tenuior var. rubriflora.
Tiny white teeth are visible upon the margins of the glaucous, tapering leaves in the photo, spaced with diminishing internodes towards the stem tip. The variously curving leaves are long, narrow and succulent, the upper surfaces concave, the lower ones convex (Van Wyk and Smith, 2003; Wikipedia).
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