Helianthemum apenninum

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Helianthemum apenninum
Helianthemum apenninum1.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Malvales
Family: Cistaceae
Genus: Helianthemum
Species: H. apenninum
Binomial name
Helianthemum apenninum
(L.) Mill.

Helianthemum apenninum, the white rock-rose, is a white-flowering rock rose found in dry grassy and rocky places across large parts of Europe.

H. apenninum flowers from March to July, and may grow up to 50 cm tall. The flowers are pentamerous, up to 30 mm across, and are white with yellow centres and yellow stamens. The three outer sepals are hairy and striped; the 2 inner sepals are very small. The flowers grow in clusters of 3 to 10 on a stem.

The leaves are linear to lance-shaped, 30 mm long, in opposite pairs. They are covered with greyish or whitish hairs, especially on the underside, and the edges are rolled under.

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