Helianthemum nummularium (L.) Mill. Sun Rose

Helianthemum nummularium (L.) Mill. - Sun Rose

Scientific Description:

Suffruticose perennial, often straggling, lax. Indumentum variable, but not usually hispid-setose. Leaves very narrowly elliptic to oblong, not or scarcely revolute. Inner surface of inner sepals glabrous. Petals yellow.

 

subsp. nummularium

Petals 6−9(−10) mm; leaves 3−5(−7) mm, broad.

 

Flowering time: April−August.

Habitat: Rocky slopes, banks, 1000−2100 m.

 

Reference:

Coode MJE (1965). Helianthemum nummularium (L.) Miller, In: Davis PH (ed.), Flora of Turkey and the East Aegean Islands, Edinburgh University Press, Edinburgh, 1: 512.

Public Description:

Helianthemum nummularium subsp. mummularium, known as “rock-rose”, “sun rose” or “rock rose”, is distributed in Central and Northern Europe, Balkans, South and Central Russia and Caucasia. It is an evergreen trailing perennial shrubs with clusters of bright yellow flowers which are sensitive to the touch. It blooms between April and August and is found in basic grassland and scrub. The wild species has yellow flowers, but garden varieties range from white through yellow to deep red. This is a good nectar source for bees and there are several species of small beetle that feed on the foliage. The sun rose is also the food plant for the larvae of several species of moth and butterfly.

 

References:

Anonymous (2016). https://en.wikipedia.org/wiki/Helianthemum_nummularium, Accessed date: 05.01.2016.

Yeşilyurt B E (2012). Helianthemum Mill., In: Güner, A., Aslan, S., Ekim, T., Vural, M. & Babaç, M.T. (eds.), Türkiye Bitkileri Listesi (Damarlı Bitkiler). Nezahat Gökyiğit Botanik Bahçesi ve Flora Araştırmaları Derneği Yayını. İstanbul, pp. 369–371.