Petrosedum rupestre

Petrosedum rupestre, also known as reflexed stonecrop,[1] Jenny's stonecrop,[2] blue stonecrop, stone orpine, prick-madam and trip-madam,[3] is a species of perennial succulent flowering plant in the family Crassulaceae, native to northern, central, and southern Europe.

Petrosedum rupestre
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Saxifragales
Family: Crassulaceae
Genus: Petrosedum
Species:
P. rupestre
Binomial name
Petrosedum rupestre
(L.) P.V.Heath
Synonyms
List
  • Sedum rupestre L.
  • Petrosedum reflexum (L.) Grulich
  • Petrosedum rupestre subsp. reflexum (L.) Velayos
  • Sedum albescens Haw.
  • Sedum caesium Boreau ex Pérard
  • Sedum collinum Willd.
  • Sedum crassicaule Link
  • Sedum cristatum Schrad.
  • Sedum fragile Dumort.
  • Sedum glaucum Haw.
  • Sedum glaucum Sm.
  • Sedum graniticum Pérard
  • Sedum luteum Garsault
  • Sedum minus Haw.
  • Sedum nutans Haw.
  • Sedum recurvatum Willd.
  • Sedum reflexum L.
  • Sedum septangulare Haw.
  • Sedum virens Aiton
  • Sedum virescens Willd.

Description

Petrosedum rupestre plants are typically up to 10 cm high, with sprawling stems and stiff foliage resembling spruce 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, grown in gardens, containers, and as houseplants. It is drought-tolerant. There are named cultivars with variegated (multi-colored) leaves. Through vegetative cloning it is propagated from cuttings.[4]

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.[5]

Petrosedum rupestre is occasionally used as a salad leaf or herb in Europe, including the United Kingdom.[6] It is said to have a slightly astringent or sour taste.

References
  1. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  2. USDA, NRCS (n.d.). "Sedum reflexum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 November 2015.
  3. "trip-madam". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  4. Horvath, Brent. "The Plant Lover's Guide to Sedums".Timber Press Inc., 2014, p. 113
  5. Stephenson, Ray (1994). Sedum. Timber Press. ISBN 0-88192-238-2.
  6. "Sedum rupestre - L. Crooked Yellow Stonecrop". Plants for a Future. Retrieved 2010-04-28.
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