Stems
obtusely 4-angled, creeping; stems and branches with adventitious roots and sharp, tuberculiform, widely spreading teeth often slightly reflexed, rarely over 3 mm long, lacking stipular denticles along angles
Flowers
1 or 2, usually arising towards base of stems or branches, opening successively, at least 25 mm in diameter, with a broad, smooth (not rugulose nor verrucose), glabrous annulus
LEACH, L.C. 1978. A contribution towards a new classification of
Stapelieae
(
Asclepiadaceae
) with a preliminary review of
Orbea
Haw. and descriptions of three new genera.
Excelsa, Taxonomic Series
1
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Welcome to Biodiversity Advisor 2.0!
Biodiversity Advisor, developed by the South African National Biodiversity Institute (SANBI) and its Data Partners, is a system that will provide integrated biodiversity information to a wide range of users who will have access to geospatial data, plant and animal species distribution data, ecosystem-level data, literature, images and metadata.
The integrated information comes from our much-loved Botanical Database of Southern Africa (BODATSA) also known as Plants of Southern Africa (POSA), Zoological Database of Southern Africa (ZODATSA), Biodiversity Geographic Information System (BGIS), SANBI's institutional repository (Opus) and others.
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