It is an evergreen trailing plant with loose terminal clusters of bright yellow, saucer-shaped flowers. In the flower centre is a tight cluster of orange stamens, which are sensitive to the touch, and spread outwards to reveal the tall stigma in the middle. The plant is common on chalk downs, and occasional in other grasslands, always on dry, base-rich soil. The wild species has yellow flowers, but garden varieties range from white through yellow to deep red.
Though the individual blooms are short-lived, the plant produces a mass of flowers through the summer. It needs a dry, sunny place, like a south-facing rockery or meadow. As the Latin name Helianthemum suggests, these are sun-flowers. This is a good pollen source for bees and there are several species of small beetle that feed on the foliage. Common rock-rose is also the food plant for the larvae of several species of moth and butterfly such as the silver-studded blue (Plebejus argus).
H. nummularium subsp. obscurum Germany - Schwäbisch Fränkische Waldberge
H. nummularium subsp. obscurum Germany - Schwäbisch Fränkische Waldberge
H. nummularium subsp. obscurum Germany - Schwäbische Alb
H. nummularium subsp. obscurum Germany - Schwäbische Alb
Pink-flowered cultivarsedit
Illustrationsedit
flower diagram
Unclassified images of Helianthemum nummulariumedit
Referencesedit
^ ab"Helianthemum nummularium (L.) Mill". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 12 December 2020.
helianthemum, nummularium, known, common, rock, rose, species, rock, rose, cistaceae, native, most, europe, subsp, glabrum, scientific, classification, kingdom, plantae, clade, tracheophytes, clade, angiosperms, clade, eudicots, clade, rosids, order, malvales,. Helianthemum nummularium known as common rock rose 2 is a species of rock rose Cistaceae native to most of Europe Helianthemum nummularium Helianthemum nummularium subsp glabrum Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Rosids Order Malvales Family Cistaceae Genus Helianthemum Species H nummularium Binomial name Helianthemum nummularium L Mill Synonyms 1 List Cistus mutabilis Jacq Cistus nummularius L Cistus roseus All Cistus serpillifolius L Cistus surrejanus L Helianthemum angustipetalum Cadevall Helianthemum arcticum Grosser Janch Helianthemum barbatum Sweet Helianthemum chamaecistus Mill Helianthemum croceum Ten Helianthemum graecum Boiss amp Heldr Helianthemum helianthemum H Karst Helianthemum heterophyllum Schur Helianthemum laevigatum Schur Helianthemum macranthum Schur Helianthemum multiflorum Ziz Helianthemum mutabile Jacq Moench Helianthemum rupicola Schur Helianthemum seguieri Pollini Helianthemum serpillifolium L Mill Helianthemum stabianum Heldr ex Willk Helianthemum vulgare Garsault Helianthemum vulgare Gaertn Helianthemum nummularium MHNT Contents 1 Description 2 Taxonomy 2 1 Subspecies 2 2 Gallery 2 3 subsp grandiflorum Scop Schinz amp Thell 2 4 subsp nummularium 2 5 subsp obscurum Celak Holub 2 6 Pink flowered cultivars 2 7 Illustrations 2 8 Unclassified images of Helianthemum nummularium 3 ReferencesDescription editIt is an evergreen trailing plant with loose terminal clusters of bright yellow saucer shaped flowers In the flower centre is a tight cluster of orange stamens which are sensitive to the touch and spread outwards to reveal the tall stigma in the middle The plant is common on chalk downs and occasional in other grasslands always on dry base rich soil The wild species has yellow flowers but garden varieties range from white through yellow to deep red Though the individual blooms are short lived the plant produces a mass of flowers through the summer It needs a dry sunny place like a south facing rockery or meadow As the Latin name Helianthemum suggests these are sun flowers This is a good pollen source for bees and there are several species of small beetle that feed on the foliage Common rock rose is also the food plant for the larvae of several species of moth and butterfly such as the silver studded blue Plebejus argus It flowers from May until July Taxonomy editSubspecies edit Two subspecies are currently accepted 1 Helianthemum nummularium subsp kerneri Gottl Tann amp Janch Lambinon Helianthemum nummularium subsp nummularium Widespread Gallery edit nbsp nbsp nbsp subsp grandiflorum Scop Schinz amp Thell edit nbsp nbsp subsp nummularium edit nbsp nbsp subsp obscurum Celak Holub edit nbsp H nummularium subsp obscurumGermany Schwabisch Frankische Waldberge nbsp H nummularium subsp obscurumGermany Schwabisch Frankische Waldberge nbsp H nummularium subsp obscurumGermany Schwabische Alb nbsp H nummularium subsp obscurumGermany Schwabische Alb nbsp nbsp Pink flowered cultivars edit nbsp nbsp Illustrations edit nbsp nbsp flower diagram Unclassified images of Helianthemum nummularium edit nbsp nbsp nbsp References edit a b Helianthemum nummularium L Mill Plants of the World Online Board of Trustees of the Royal Botanic Gardens Kew 2017 Retrieved 12 December 2020 BSBI List 2007 xls Botanical Society of Britain and Ireland Archived from the original xls on 2015 06 26 Retrieved 2014 10 17 Flora Europaea Helianthemum nummularium Retrieved from https en wikipedia org w index php title Helianthemum nummularium amp oldid 1162690056, wikipedia, wiki, book, books, library,
