Plant Genera


Anchistea

Family Code: BLECHN
Genus Code: ANCHI
Genus CN: Virginia Chain Fern
Genus Summary: A monotypic genus, perennial herb, of e. North America. Anchistea has often been lumped into the Eurasian (mainly e. Asian) Woodwardia, but is basal to Woodwardia, morphologically distinctive from both Woodwardia and Lorinseria, and an ancient independent lineage.
Genus Identification: Identification notes: Sterile plants of Osmundastrum cinnamomeum are sometimes confused with Anchistea virginica, which also has rather coarse, pinnate-pinnatifid leaves and grows in similar wet, acid places. Osmundastrum is coarser (to 2 m tall, vs. to 1 m tall), has cinnamon tufts of tomentum present in the axils of the pinnae (vs. absent), has the rachis greenish and rather fleshy in texture (vs. brown and wiry), and bears fronds clumped or tufted from a massive, woody, ascending rhizome covered with old petiole bases (vs. fronds borne scattered along a thick, horizontal, creeping rhizome).
Genus References: Cranfill & Kato (2003)=Z; Cranfill in FNA (1993b); Li et al. (2015); Kramer, Chambers, & Hennipman in Kramer & Green (1990).
Last Updated: 2019-11-30
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