Crassula rupestris, called buttons on a string, is a species of Crassula native to the Cape Provinces of South Africa.[2] It has gained the Royal Horticultural Society's Award of Garden Merit.[3] It is also called bead vine, necklace vine, and rosary vine.[3]

Crassula rupestris
Decussate phyllotaxis of Crassula rupestris
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Saxifragales
Family:	Crassulaceae
Genus:	Crassula
Species:	C. rupestris
Binomial name
Crassula rupestris L.f.[1]
Synonyms[2]
Crassula monticola N.E.Br. Purgosea rupestris (L.f.) G.Don

Subspecies

The following subspecies are currently accepted:[2]

• Crassula rupestris subsp. commutata (Friedr.) Toelken
• Crassula rupestris subsp. marnieriana (Huber & Jacobsen) Toelken

References

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