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Apiaceae
Ptilimnium

not marked as a favorite taxon Ptilimnium Rafinesque. Common name: Mock-Bishopweed, Harperella.

Key to Ptilimnium

A genus of 5 species, annual and perennial herbs, temperate, of e. North America (Plunkett et al. 2018a). Ptilimnium has been re-split into two genera, Harperella and Ptilimnium, as Ptilimnium (s.s.) with compound leaves is more closely related to Tiedemannia (formerly Oxypolis with quill leaves) than it is to Harperella (Feist & Downie 2008; Feist et al. 2012).

Glossary (beta!)

Subfamily: Apioideae. Tribe: Oenantheae.

ID notes: Annual or perennial caulescent herbs growing to 150 cm tall. The basal and proximal cauline leaves are usually withered by anthesis and are usually 1-pinnate. The middle and distal cauline leaves are pinnately decompound and the leaflets are pinnately dissected, capillary, filiform, or linear. Umbels are terminal and axillary and are compound, flat-topped, convex, or hemispheric. Flowers are bisexual and white. Fruits are ovoid or ellipsoid to globose and slightly doriventrally compressed.

References: Easterly (1957); Feist (2010); Feist (2024f) In Flora of North America Editorial Committee (2024); Feist & Downie (2008); Feist et al. (2012); Keener et al. (2024); Kral (1981a); Kress, Maddox, & Roesel (1994); Mathias & Constance (1945); Plunkett et al. (2018a) In Kadereit & Bittrich (2018); Weakley & Nesom (2004). Show full citations.

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image #1 of Ptilimnium© Bruce A. Sorrie | Ptilimnium capillaceum | Original Image ⭷
image #2 of Ptilimnium© Keith Bradley | Ptilimnium ahlesii | Original Image ⭷
image #3 of Ptilimnium© Alan M. Cressler | Ptilimnium capillaceum | Original Image ⭷

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