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Quaqua mammillaris (Aroena)


Scientific Name

Quaqua mammillaris (L.) Bruyns

Common Names



Stapelia mammillaris (basionym)Boucerosia mammillaris, Caralluma mammillaris, Caralluma winkleri, Caralluma winkleriana, Pectinaria mammillaris, Piaranthus mammillaris

Scientific Classification

Family: Apocynaceae
Subfamily: Asclepiadoideae
Tribe: Ceropegieae 
Subtribe: Stapeliinae
Genus: Quaqua


Quaqua mammillaris is a much-branched, patch-forming, glabrous shrub with green stems, sometimes mottled with purple brown, 4- to 5-angled, sharp-toothed, up to 10 inches (25 cm) long and up to 1 inch (2.5 cm) in diameter. Flowers are bisexual, brownish-red to black in color. The fruit is a pair of follicles.


USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).

How to Grow and Care

Stapeliads are relatively easy to grow. They should be treated as an outdoor plant as they will easily rot indoors and cannot flower without exposure to outdoor temperature fluctuations. They should be grown under cover so that watering can be controlled. They require a reasonable amount of sunlight to promote flowering and maintain a well shaped plant. Very shady positions will produce very poor flowering. Stapeliads come from climates where they survive extremely high temperatures in the summer months so most growth is in spring and autumn, with flowering in autumn when the weather starts to cool down. In growing season, water in moderation when needed, making sure soil is fairly dried out between waterings. Do not water between November 1 and March 1.

The easiest and best way to propagate Stapeliads is from stem cuttings which can be taken virtually throughout the year. Seed is also a method of propagation… – See more at: How to Grow and Care for Stapeliads


Native to Namibia, South Africa (Cape Province).


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