Wondering if this is Q. x schuettei (bicolor x macrocarpa); both Q bicolor and (to a lesser extent) Q macrocarpa were growing nearby. Acorns are borne on stout peduncles of varying length, with both the shortest and longest (within reach) represented in these images. The leaf profile strikes me as closer to Q macrocarpa. Not seeing hairs of varying lengths on the leaf undersides, but that could be due to the poor image quality. One leaf had a gall induced by the wasp Andricus nigricens, which induces galls on Q bicolor but not Q macrocarpa.
Stumbled upon this rare beauty!
@derekstephenhollingshead -should be the same population as https://inaturalist.ca/observations/203517535
Longest spines >3cm long, several areoles with 9 or more spines, flowers ~5cm diameter.
Narrow toothed alternate leaves. Not far from the river but not on the shore. Separate observation for the fuzzy white galls.
Cook County Forest Preserves Sweet and Jurgensen Woods near Thornton, Illinois. Sandy acid loam oak woodlands with common associates of Quercus alba, Quercus velutina, Quercus palustris, Sassafras albidum and Nyssa sylvatica. Range maps of Quercus coccinea in both Eastern US and Illinois. Illinois map from Forest Trees of Illinois (Hayek, 2009)
Pictures of mature buds, leaves and acorn. from Sweet Woods and acorn with rings from nearby Cook County Jurgensen Woods. Acorns collected from Pennsylvania Allegheny Forest, Pelham and Montague Massachusetts via Harvard Forest Research Station. Massachusetts /Pennsylvania trees are Quercus coccinea.
Growing in rock crevice along river, strong red veins and leaves a bit less finely lobed
Nerstrand Big Woods State Park. This is Minnesota’s only endemic flowering plant, known only from three counties in the southeastern part of the state.
Population of the northern savannah expression of Quercus coccinea growing on acid sandy loam with aspen, white birch (a few Bur Oak) in a tall grass prairie ecosystem in Minnesota.
Included is a Discriminant Functions Statistical Analysis centroid graph of 25 populations of Northern Pin and Scarlet Oak across eastern US including Minnesota . Morphology of buds, twigs, leaves, and acorns were examined. Morphological distance was noted with Black ((velutina) and Pin Oak (palustris). Quercus ellipsoidalis and Quercus coccinea group as one species not two.
Diagnostic characters of Quercus coccinea seen in this tree and population include:
20+mm acorn cupules with glossy orange acuminate bract scales
*Gray outer bark with. reddish inner bark
Hundreds of plants, different subpopulation along same cliff as other observation
Difficult to estimate the number of plants present at the site. I would estimate at least 50-100 culms.
Opuntia cesptiosa specimen collected from eastern Ontario, Canada.
In preparation for preservation and herbarium submission.
Noted:
• Vascular connective tisses; interweaving between each adjacent corresponding areole.
Plentiful on small floating mat in bay at south end of large lake.
2 stems
Pin Oak Prairie Scientific and Natural Area
Abundant on the prairie edge
Probably a relic of the old tree nursery.
HOHOHO this... is a beautiful thing. Several individuals in grow tubes back here. My theory is: these plants are volunteers that some well-meaning, but not botanically inclined, soul put tubes on after a NWTF tree planting had mostly died off, in attempt to save whatever trees/shrubs were left. I also found a couple tubed Frangula alnus nearby, oops.
There are other remnant bedfellows around the sumac, like Spiraea tomentosa and Lycopus americanus, all growing together incongruously in the middle of the field. Apparently poison sumac fruit is a good winter food source for wildlife, so it is still serving the purpose of the original planting 😁
Boardwalk, Mahnomen Trail.
Alternate simple leaves about an inch long, lance-shaped. Leaf stems flattened on top. Light vein-like pattern on top of leaf, smooth dark green on bottom. May use rhisomes. Growing amid moss at foot of sugar maple.