ID	ModifiedOn	Contributors	InformalClassification	Family	TaxonID	TaxonName	SeeAlso	NameRank	Hybrid	TerminalTaxon	Excluded	Peripheral	Waif	Endemic	Extirpated	OriginCode	Origin	Distribution	Voucher	Comments
4580	2009-12-24 09:45:00	Peter F. Zika	Vascular Plants: Monocots	Acoraceae	121850	Acoraceae		family		N	N	N	N	N	N	N	Native			FNA22: "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). Other than the absence of a close association with Arales, the phylogenetic affinities of Acoraceae remain unclear. Evidence based on DNA sequences fails to show any close relationships between Acorus and other genera, and instead supports Acorus as the oldest extant lineage of monocotyledons (M. R. Duvall et al. 1993).<br><br>The removal of Acorus from Araceae is supported by the absence of a spathe and the unique vasculature of the structure traditionally interpreted as a spathe (T. S. Ray 1987). The structure that has been called a spathe in Acorus is not morphologically equivalent to the spathe of Araceae; instead it is interpreted as the distal part of the sympodial leaf. The proximal part of the sympodial leaf is adnate to the peduncle, forming a 3-angled axis that bears the inflorescence.
4581	2018-05-02 22:04:00		Vascular Plants: Monocots	Acoraceae	121851	Acorus		genus		N	N	N	N	N	N	N	Native			
4582	2024-01-13 15:46:54		Vascular Plants: Monocots	Acoraceae	121852	Acorus americanus		species		Y	Y	N	N	N	N	N	Native		{"Herbarium":"WS"}	Known only from a single, historic collection with no habitat data from Spokane Co. Additional specimens are needed to demonstrate that this species is established in the flora.  Taxonomy follows FNA, distinguishing North American and Eurasian taxa at the species level. They differ in their chromosome level, fertility, and leaf venation.
4583	2024-01-13 15:44:25		Vascular Plants: Monocots	Acoraceae	121854	Acorus calamus		species		Y	N	N	N	N	N	I	Introduced from Eurasia	Occurring in scattered locations on both sides of the Cascades crest in Washington;	{"Herbarium":"WTU"}	
