page_title: Silaum silaus
section_title: Ecology
hierarchical_section_title: Silaum silaus / Ecology
caption_attribution_description: Egg of the butterfy Papilio machaon on one of its host plants&#160;: Silaum silaus
context_page_description: Silaum silaus, commonly known as pepper-saxifrage, is a perennial plant in the family Apiaceae found across south-eastern, Central and Western Europe, including the British Isles. It grows in damp grasslands on neutral soils.
context_section_description: Silaum silaus is an indicator of agriculturally unimproved meadows, and is part of a group (in the United Kingdom) of flowering plants specially associated with neutral grassland associated with low-nutrient regimes. This group is declining in the UK due to agricultural improvement, diffuse pollution and habitat fragmentation and hence S. silaus is on the United Kingdom Biodiversity Action Plan. At least three species of moth larvae in the UK use the plant as a food source – Sitochroa palealis, Agonopterix ciliella and Agonopterix yeatiana.
  Silaum silaus fruit has been identified from substage III of the Hoxnian interglacial period (a stage in the middle Pleistocene) in the British Isles.
caption: Egg of the butterfly Papilio machaon on a Silaum silaus host plant
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