S. tuberosum L., Sp. PI., ed. 1 (1753) 136; Boiss., Fl. Or., IV (1875) 175; Hayek, Prodr. Fl. Penins. Balc., II (1928) 56; Pawl., Fl.. Eur., Ill (1972) 104 — Грудесто зарасличе
Fam: BORAGINACEAE JUSS.
Genus: SYMPHYTUM L.
Species: Symphytum tuberosum L.
English Name: Tuberous Comfrey
Tuberous Comfrey flowers from April to June, however it also reproduces asexually, that is vegetatively, havingr hizomes that allow it to spread out from the original site, colonising and competing as it grows. This process continues into the autumn and the young clonal plants can be seen at this time of year, whilst the parent plants leaves are rotting down. Being very hardy, this plant is well able to survive northern winters. Both the stems and leaves are softly hairy, the leaves have deep veining.
The flowers themselves are a subtle pale creamy yellow, a significant characteristic for separating its identity from the purple flowered Russian Comfrey. The usual pollinators are the common carder bumble bee, honey bee, and red mason bee. The stem and leaves are clothed with soft hairs. The stem usually remains unbranched and the leaves are distinctly veined with a clear reduction in size from top to base.
From Wikipedia, the free encyclopedia:
S. tuberosum is naturally limited to the northern half of Great Britain, however it can be found throughout Europe. Distribution maps of the United Kingdom show the species to be common in Scotland and present, but uncommon, throughout much of England and Wales.
The Skye now has a well established and wide distribution thanks to planting, this has also occurred in Ireland. The North American west coast has a number of introduced S. tuberosum sites.
Flowering Time: April - July
„Флора на НР България”, том IX, БАН, София, (1989) / (“Flora of Rep. Bulgaria”, vol. IX, Bulg. Acad. Sci. Sofia, (1989))
Distribution in Bulgaria:
These plants grow in damp woody and bushy places in the plains, foothills, and mountains in all appropriate floristic regions in Bulgaria, from sea level up to 2200 m altitude. Conspectus of the Bulgarian Vascular Flora = conspectus&gs_l= Zlc
Western-, Central- and South Europe, South-West Asia.
Conservation status and threats: not protected species in Bulgaria by theBiodiversity Law. Законодателство на Република България: Закон за биологичното разнообразие.
Medical plant: it is not. http://lex.bg/laws/ldoc/2134916096
1. 2. 3.
Symphytum tuberosom 1. Symphytum tuberosum 2. Symphytum tuberosum 3.