Crassula rubricaulis grows to 50 cm, branching much and developing roots at every stem node touching the ground. Rubricaulis, a Latin word, means red-stemmed.
The leaves, also an important part of the attraction of this plant, are sessile (no stalks). They are narrow and obovate (wider towards the tip than near the base), quite fleshy or succulent with entire margins and a characteristic reddish tinge, especially around their margins. Leaf dimensions are 2,5 cm long and 1 cm wide.
The leaf margins are covered in tiny white hairs, similar to C. dejecta and C. ciliata, both of which have other features resembling this species.
The many small five-pointed star flowers are white, while the calyx, pedicel and carpel (ovary, style and stigma together) are red (Vlok and Schutte-Vlok, 2010; www.plantzafrica.com).
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