Primitive vessels are present in the roots and rhizomes. The roots have large schizogenous intercellular spaces in the cortex. Idioblastic oil cells are present in the root cortex. [portal.cybertaxonomy.org]

Leaves distichous, bases overlapping, unifacial, ensiform, not differentiated into petiole and blade; intravaginal squamules present in leaf axils; venation parallel. [worldfloraonline.org]

New information on the biology of Peltandra is presented, including controlled pollination experiments involving P. virginica. [ideals.illinois.edu]

• Chills

  Further use mainly of the rhizomes are for treatments of neurasthenia, chronic bronchitis, diarrhoea, abdominal distension, chills, colds, externally for abscesses, liver disturbance, antiulcer remedy, kidney and stomach as well as gut diseases; these [portal.cybertaxonomy.org]

• Abdominal Distension

  Further use mainly of the rhizomes are for treatments of neurasthenia, chronic bronchitis, diarrhoea, abdominal distension, chills, colds, externally for abscesses, liver disturbance, antiulcer remedy, kidney and stomach as well as gut diseases; these [portal.cybertaxonomy.org]

• Ulcer

  Pollen grains aperturate; 1 aperturate; sulcate (to sub-ulcerate); 2-celled. Gynoecium (2–)3(–4) carpelled. [delta-intkey.com]

• Frigidity

  Frigid zone, temperate, and sub-tropical. Celebes and New Guinea, Eastern Asia to Norway approaching the Arctic circle, central and western North America. 2n=24. Supposed basic chromosome number of family: 12. Ploidy levels recorded: 2 and 3. [delta-intkey.com]

  Frigid zone, temperate, and sub-tropical. Celebes and New Guinea, Eastern Asia to Norway approaching the Arctic circle, central and western North America. 2 n =24. Supposed basic chromosome number of family 12. Ploidy levels recorded 2 and 3. [www1.biologie.uni-hamburg.de]

As family treatments are completed for the New Manual, these are being made available as downloadable PDFs. [nybgpress.org]

Acorus historically was recognized as an aberrant genus within Araceae, but much evidence supports its treatment as a separate family and the removal of this family from Arales (M. H. Grayum 1987). [efloras.org]

[…] monocots (Liliopsida; Equisetopsida, Magnoliidae, Lilianae), which covers species occurring on host plants belonging to families arranged in alphabetical order from Acoraceae to Xyridaceae, excluding Poaceae (cereals and grasses) which requires a separate treatment [ncbi.nlm.nih.gov]