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Ripariosida hermaphrodita (Linnaeus) Weakley & D.B. Poindexter. Virginia Sida, Virginia-mallow. Phen: Jul-Aug. Hab: Sandy or rocky areas along riverbanks. Dist: C. PA and MD west to s. OH, south to DC, WV, w. VA, and ne. TN; disjunct in nw. OH and ne. IN (where presumably native) and with additional collections from e. MA, NY (Long Island), s. NJ, s. MI, and s. ON (where presumably adventive or persistent from horticultural use) (Spooner et al. 1985).

Origin/Endemic status: Native

Taxonomy Comments: Fryxell (1985) commented that this species is so different from the rest of the genus [Sida] that "one might plausibly argue that it be elevated to generic rank". A molecular phylogenetic analysis suggested that its affinities are not with Sida, but with the South American Sidasodes (Fuertes, Fryxell, & Jansen 2003). Weakley & Poindexter (2017) finally validated what has been apparent for decades: this is an isolated taxon, warranting recognition as a monospecific genus. Spooner et al. (1985) provided a detailed review of the species.

Synonymy: = K4, Weakley & Poindexter (2017) in Weakley et al (2017); = Sida hermaphrodita (L.) Rusby – C, F, FNA6, G, K1, K3, K4, Mi, NE, Pa, S, S13, Tat, Va, W, WV, Fryxell (1985)

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: UPL (name change)
  • Eastern Mountains and Piedmont: FAC (name change)
  • Midwest: FACU (name change)
  • Northcentral & Northeast: FACU (name change)

Heliophily: 7

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Nate Hartley, some rights reserved (CC BY-NC), uploaded by Nate Hartley source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Shaun Pogacnik, some rights reserved (CC BY-NC), uploaded by Shaun Pogacnik source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Shaun Pogacnik, some rights reserved (CC BY-NC), uploaded by Shaun Pogacnik source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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