(Not comprehensive) What to expect for riparian zones in orv confluence.
it’s the best time of year to fen hop here in Ohio but before anyone does that a pilgrimage to a less addressed habitat is necessary and fun, its check on mudflats in western Ohio time;
I just spent a few solid days botanizing some of Ohio’s most classic habitats.
Two mudflat locations: Little Miami meets ORV and Great Miami meets ORV. (though a weirder one is the ancient oxbow flats of the Great Miami. BTW ORV is Ohio River Valley.
A group of really good friends and I got together and tried to hit the Shawnee lookout giant ragweed thickets(15 foot tall this year with native amaranth mixed in at similar height) Each year a few people check this spot earlier and than a few later for a tricky plant not seen since 2010 called Orobanche riparia
which may or may not be state extirpated from TN WV VA and OH. these are only affiliated with confluence zones and specifically Ancient ragweed thicket communities. Normally Ragweed is 7 foot max, and dies every year, falluvium(alluvium displaced by frequent floods), buries these past frost lines and their roots are insulated. and the stems are more supported at the base.
while being a classic rare species, Japanese hops have now made it extremely problematic to spot and so it remains elusive.
while the 3 giant amaranth and 8 species of Persicaria are present with the cockerburl and ragweed along with florida and giant lettuce; It’s also notable that rough barnyard grass and two other river bank giant ragweed thicket rarities are also present. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.155128/Ripariosida_hermaphrodita virginia riverbank mallow and ….
Flood plain woods: wood nettle, greenheaded cone flower, panicled fall phlox, cup plant, Jerusalem artichoke, 2 Persicaria spp., more angry hops, 2 common Rubus spp. (black cap and Alleghany), Monarda serotina, more lettuce, both of Ohio’s jewel weed.
It’s ok though because the disturbance is still frequent in some sections and many rare sedges and rushes exist as well as mud flat species can be seen as preserved. These are very small species that thrive on silt
the map above is for a species that recently got split again after already being split from drummunds’ bull rush. Now called dwarf bull rush and went through a new genera name too. River dwarf bull rush is no longer Hemicarpha micrantha and is now Lipocarpha micrantha.
Others of notable interest in flat: Kyllinga pumila, Paspalum fluitans, Myosurus minimus(adventive), Cyperus acuminatus,
both toothleafs are present too. Ammania coccinea(sessile peduncle and least common) and Ammania robusta(most common) for ohio.,
another classic forbe thats pretty darn common is obi wan conobea usually with carolina geranium not far apart,
green, dentate, davids, prostrate, true spotted, and Phyllanthus caroliniensis along with multiple copper leaves are present.
(plenty of other sedges but I can’t think of all the ones Dan Boone has tried to teach me there.)
Broken bank( sand cut banks):
alleghany monkey flower, blue siphilis lobellia, indian tobacco inflated lobellia, common milkweed, 3 uncommon Rubus spp. all adventive except for one that looks like a glaberous prickily virginia creeper vine Rubus trivialis . We also see both swamp and ciliate margin loose strife, two figworts, and cockerburl again along with 4 native persicaria, 2 native day flower(Commelina spp.), 3 seedbox/ludwigs (Ludwigia spp.), waterspeedwell Veronica catenata ,
mints are well represented: 3 Stachys spp. water hoarhound, american germander, 3 potential Monarda spp. (bubblegun, basal white, and M. serotina), both ciliate and hairy wood mints.
Classic creeping fabaceae are: Amphicarpaea bracteata and Apios americana.
lance leaf frog fruit, smooth scouring rush, verticilate scouring rush, and rough scouring rush, smooth rush, green bull rush, the brown tall giant one, 3 sided rush, big bluestem? some how?, button bush, both the common hibiscus, sand bar and black willows, water willow(not a willow), lizard tail(the fruitloop smelling one).
If you want someone who knows more about this habitat than anyone else, Dan Boone is probably the person to ask.