The following description is adopted from Professor 
Sprengel. 
“ Flowers yellow. Stem about three feet high, round, 
smooth, slightly branched, leafy, about as thick as the 
middle finger: leaves ternately superdecompound, limber, 
with sheathing, fivefoldedly tripartite limber petioles; leaf- 
lets pinnatifid, tender, limber (very like the fronds of the 
Fern called Maiden-hair), segments short, linear, pointed, 
turning brown when dry. Umbels terminal, 40-50-rayed, 
slightly uneven, smooth. Common Involucre slightly pin- 
natifid; leaflets few, imperfect: partial one of many leaf- 
lets, setaceous, and but little shorter than the partial um- 
bels. Fruit surmounted by the permanent styles, oval, 
compressed, with five obsolete ridges, and four sunken lines 
along the back. 
Marked in the Hortus Kewensis.as a biennial. Requires 
the protection of a greenhouse. 
It has never been figured in any other work. 
