''Petrosedum rupestre'', also known as reflexed stonecrop, Jenny's stonecrop, blue stonecrop, stone orpine, prick-madam and trip-madam, is a species of

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

succulent In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the family Crassulaceae, native to northern, central, and southern Europe.

Description

''Petrosedum rupestre'' plants are typically up to 10 cm high, with sprawling stems and stiff foliage resembling

spruce A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfami ...

branches, with softer tissue. The leaves are frequently blue-gray to gray but range to light greens and yellows; the flowers are yellow. Like many ''Sedum'' species, it has a prostrate, spreading habit.

Cultivation

''Petrosedum rupestre'' is a popular

ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

, grown in gardens, containers, and as houseplants. It is drought-tolerant. There are named cultivars with

variegated Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the s ...

(multi-colored) leaves. Through

vegetative cloning Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment or cutting of the parent plant or speci ...

it is propagated from cuttings. This sedum is prone to fasciation (cristate forms), which produces attractive cactus-like forms, with irregular curves. However it reverts easily, so all normal offshoots need to be removed quickly to maintain the cristate form. ''Petrosedum rupestre'' is occasionally used as a salad leaf or herb in Europe, including the United Kingdom. It is said to have a slightly astringent or sour taste.

References

Sedum rupestre ‘Angelina’

Peter Lapshin

External links

* Drought-tolerant plants Flora of Denmark Flora of France Flora of Germany Flora of Italy Flora of Norway Flora of Poland Flora of Portugal Flora of Slovakia Flora of Spain Flora of Sweden Flora of Switzerland Flora of the Czech Republic Garden plants of Europe Groundcovers Plants described in 1755 reflexum Taxa named by Carl Linnaeus {{Crassulaceae-stub