common rock-rose vs Dagestanian Sun Rose

Helianthemum nummularium compared with Helianthemum dagestanicum

Key Differences

• common rock-rose is Near Threatened while Dagestanian Sun Rose is Endangered.

Taxonomic Classification

Rank	common rock-rose	Dagestanian Sun Rose
Kingdom same	Plantae (พืช)	Plantae (พืช)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (พืชใบเลี้ยงคู่)	Magnoliopsida (พืชใบเลี้ยงคู่)
Order same	Malvales (อันดับชบา)	Malvales (อันดับชบา)
Family same	Cistaceae	Cistaceae
Genus same	Helianthemum	Helianthemum
Species	Helianthemum nummularium	Helianthemum dagestanicum

Evolutionary Relationship

common rock-rose and Dagestanian Sun Rose share a common ancestor at the Genus level: Helianthemum.

Conservation Status

common rock-rose

NT — Near Threatened

Dagestanian Sun Rose

EN — Endangered

Physical Characteristics

Attribute	common rock-rose	Dagestanian Sun Rose
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

common rock-rose

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (6 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Dagestanian Sun Rose

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

common rock-rose

<em>Helianthemum nummularium</em>, the common rock rose, is a low-growing subshrub in the family Cistaceae, order Malvales. It is assessed as Near Threatened on the IUCN Red List and is distributed across Europe, with populations documented in Belgium, Czech Republic, Germany, Norway, Sweden, and the United Kingdom. Common rock rose typically grows in calcareous grasslands, rocky outcrops, chalk and limestone downlands, and dry heathland habitats with well-drained, nutrient-poor soils. It is a characteristic species of traditionally managed grasslands and is considered a key plant in European chalk grassland communities. The plant produces small but vivid yellow five-petaled flowers from late spring to midsummer, attracting a range of pollinating insects. <em>Helianthemum nummularium</em> is a host plant for the caterpillars of several specialist butterfly species, including the brown argus. Its Near Threatened status reflects the significant loss of calcareous grassland habitat across Europe due to agricultural intensification, scrub encroachment, and land use change. As a plant, biological traits such as lifespan and diet are measured differently than in animals; the species is a perennial subshrub with vegetative spread and seed reproduction. Conservation grazing management is critical for maintaining suitable habitat for this species.