Hacquetia epipactis
Stem umbel ( Hacquetia epipactis )
The stem umbel ( Hacquetia epipactis ) is an indigenous plant species in Europe of Umbelliferae ( Apiaceae ). It is the only species of the genus Hacquetia and named after the Austrian physician and botanist Belshazzar Hacquet.
Features
The stem umbel is a perennial, herbaceous plant. She has a short, creeping base axis and reaches stature heights of 20 to 25, rarely 10 cm. It forms one or two unbranched stems that are encased in the share of membranous sheaths. The most two leaves are petiolate basal and long. The petiole is triangular, the leaf blade is hand -shaped three - ( rarely up to five ) times divided, about 5 cm long and 6 cm wide. The individual sections are 2-4 cm long, ovate - thickness taper, thereby lobed and toothed at the top. The teeth end in a bristle.
The inflorescence is a simple terminal umbel, the sheet-like five ( rarely six), yellowish - green bracts surrounded. The bracts are two or three (rarely only one) inches long and up to 1.5 cm wide. The outer flowers are male, non- stalked long and have approximately 0.5 mm long sepals. The inner flowers are hermaphroditic, sitting and have stachelspitzige sepals of about one mm in length. The petals of all the flowers are greenish yellow, about 1.5 mm long. You are emarginate at the top and narrowing in a registered proposed lobules. Flowering time is April and May.
The fruit is ungeschnäbelt, ovoid, slightly compressed at the sides and bald. She is 4 mm long and distinctly ribbed. The oil welts are individually among the main ribs. The stylus pad is annular. At maturity, the fruit is black.
The chromosome number is 2n = 16
Dissemination and locations
The shaft cone comes from Friuli and Austria through Slovenia to western Croatia before, further to the North Carpathians in the Czech Republic and Silesia. In Austria it is scattered to rare in southern Carinthia ago, inconstant in Upper Austria and Styria. In Bavaria it occurs in space Kaufbeuren abducted. The species is often cultivated as an ornamental plant.
The shaft cone grows in light, fresh deciduous forests and alder thickets, also in spruce forests. It is kalkliebend and rises up into the subalpine altitudinal zone.
Documents
- MA Fischer, K. Oswald, W. Adler: Exkursionsflora for Austria, Liechtenstein and South Tyrol. Third Edition, Upper Austria, Biology Centre of the Upper Austrian Provincial Museum, Linz 2008, ISBN 978-3-85474-187-9
- Siegmund Seybold (ed.): Schmeil Fitschen - interactive ( CD -Rom ), Quelle & Meyer, Wiebelsheim 2001/2002, ISBN 3-494-01327-6