Astrantia bavarica

Astrantia bavarica, common name masterwort, is a species of flowering plant in the family Apiaceae, native to Eastern alps. Growing to tall by broad, it is an herbaceous perennial, much used in gardens.
Etymology.
The specific epithet "bavarica", meaning "from bavaria". Bavaria is a state in Germany, which geographically distinguishes this species from its smaller relative "Astrantia minor" and from its larger relatives "Astrantia major and Astrantia maxima".
"Astrantia bavarica" was described by Friedrich Wilhelm Schultz in 1858,
and published in Flora Vol.41 (issue 11) on page 161.
Description.
"Astrantia bavarica" reaches on average of height. The stem is erect and glabrous, with little branches and few leaves. The basal leaves have a long petiole , 3 to 7 lobes and toothed segments. Size: . The cauline leaves are generally two, sessile, amplexicaul and lanceolate-shaped with a trilobed apex. The inflorescence is umbrella-shaped, with of diameter. The floral bracts are numerous (10 - 20), long, greenish-white with acuminate apex. The small flowers are greenish-white (with pink undertones). The central ones are hermaphrodite, while the external ones are male. The flowering period extends from April through to November. 
It has a RHS Hardiness Rating: H7.
Reproduction.
"Astrantia bavarica" is an entomophilous plant, mainly pollinated by beetles, but also by other insects. This perennial plant reproduces itself also by means of buds present at the ground level. It can also be grown from seed as well.
Habitat.
"Astrantia bavarica" is native to Europe, and found within Germany, Italy, Austria, Slovenia, and the eastern Alps.
They are common in mountain woodlands and scrubland, clearings and close to the streams, usually on calcareous soils, at an altitude of above sea level.