Practice question
Question
Star anise (Illicium verum) belongs to order
Explanation
Illicium verum producing star-shaped aggregate of follicles rich aromatic anethole belongs to Austrobaileyales family Schisandraceae sensu APG IV expansion including Illiciaceae, not Magnoliales featuring Magnoliaceae Annonaceae, Piperales featuring Piperaceae pepper, or Nymphaeales featuring water lilies Nymphaeaceae. Austrobaileyales distinguished by trimerous spiral flowers, essential oil cells, nodal anatomy trilacunar with three leaf traces, vessels with scalariform perforations primitive, pollen monosulcate. Illicium ovule anatropous bitegmic, endosperm formation cellular, chemistry lignan based shikimic acid pathway precursor for oseltamivir synthesis Tamiflu, confirming systematic position supported by rbcL atpB 18S sequence data independent lines.
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