Fotos / Sonidos

Square

Qué

Junco Abrojo Sparganium eurycarpum

Observ.

danielpohl

Fecha

Agosto 6, 2020 11:07 AM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Junio 6, 2020 03:45 PM UTC

Descripción

var affinis?

Fotos / Sonidos

Qué

Arrocero Americano Spiza americana

Observ.

dcoldren

Fecha

Junio 25, 2016 07:49 AM CDT

Fotos / Sonidos

Observ.

joshklostermann

Fecha

Agosto 16, 2020 04:44 PM EDT

Fotos / Sonidos

Qué

Palo Zorrillo Ptelea trifoliata

Observ.

grantfessler

Fecha

Enero 20, 2021 03:54 PM UTC

Fotos / Sonidos

Observ.

grantfessler

Fecha

Julio 4, 2020 07:09 PM UTC

Fotos / Sonidos

Observ.

grantfessler

Fecha

Junio 14, 2019 03:01 PM UTC

Fotos / Sonidos

Square

Qué

Guajolote Norteño Meleagris gallopavo

Observ.

abbeymarsmaker

Fecha

Junio 9, 2020 03:22 AM UTC

Fotos / Sonidos

Square

Observ.

sedge

Fecha

Enero 1, 2021 04:08 PM CST

Fotos / Sonidos

Observ.

joshklostermann

Fecha

Junio 23, 2020 09:04 AM EDT

Fotos / Sonidos

Observ.

joshklostermann

Fecha

Julio 1, 2020 12:33 PM EDT

Lugar

Nachusa (Google, OSM)

Fotos / Sonidos

Observ.

joshklostermann

Fecha

Julio 1, 2020 01:03 PM EDT

Fotos / Sonidos

Square

Qué

Maíz Zea mays

Observ.

leickfarm

Fecha

Septiembre 1, 2019 01:27 PM CDT

Descripción

Corn plant growing in rotted branch stub of a prunus serotina.

Fotos / Sonidos

Square

Observ.

danielpohl

Fecha

Abril 18, 2020 11:49 AM UTC

Descripción

Pink breeches!

Fotos / Sonidos

Observ.

danielpohl

Fecha

Mayo 6, 2020 05:12 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Septiembre 20, 2020 01:52 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Septiembre 20, 2020 02:11 PM UTC

Fotos / Sonidos

Square

Observ.

danielpohl

Fecha

Mayo 30, 2020 05:12 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Junio 13, 2020 04:30 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Junio 14, 2020 03:56 PM UTC

Fotos / Sonidos

Observ.

jspringsteen

Fecha

Julio 6, 2020 06:31 AM UTC

Fotos / Sonidos

Observ.

jspringsteen

Fecha

Julio 16, 2020 09:28 AM UTC

Fotos / Sonidos

Qué

Té de Nueva Jersey Ceanothus americanus

Observ.

danielpohl

Fecha

Julio 2, 2020 03:22 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Mayo 29, 2020 01:22 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Septiembre 19, 2020 01:26 PM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Septiembre 20, 2020 01:48 PM UTC

Fotos / Sonidos

Square

Observ.

danielpohl

Fecha

Junio 23, 2020 10:37 AM UTC

Fotos / Sonidos

Observ.

danielpohl

Fecha

Julio 12, 2020 05:45 PM UTC

Fotos / Sonidos

Observ.

annab

Fecha

Septiembre 17, 2020 03:52 PM CDT

Fotos / Sonidos

Observ.

micahbowman

Fecha

Agosto 13, 2020 07:12 PM UTC

Fotos / Sonidos

Observ.

skrentnyjeff

Fecha

Julio 13, 2020 11:21 AM CDT

Descripción

flowers less than 1/2 as big as Northern right next to it

Fotos / Sonidos

Observ.

karibou20

Fecha

Agosto 16, 2019 12:08 PM UTC

Fotos / Sonidos

Observ.

micahfreedman

Fecha

Julio 4, 2020 04:11 PM EDT

Fotos / Sonidos

Square

Observ.

johnhboldt

Fecha

Noviembre 5, 2020 02:57 PM CST

Fotos / Sonidos

Observ.

bouteloua

Fecha

Septiembre 26, 2017 02:53 PM CDT

Fotos / Sonidos

Observ.

k2018lena

Fecha

Mayo 16, 2019 03:04 PM CDT

Fotos / Sonidos

Observ.

micahbowman

Fecha

Septiembre 19, 2020 06:43 PM UTC

Fotos / Sonidos

Observ.

jlison

Fecha

Julio 24, 2020 01:22 PM UTC

Fotos / Sonidos

Square

Observ.

meo73

Fecha

Agosto 4, 2020 04:01 PM UTC

Fotos / Sonidos

Observ.

abelkinser

Fecha

Septiembre 16, 2020 07:04 PM UTC

Fotos / Sonidos

Observ.

abelkinser

Fecha

Agosto 30, 2020

Fotos / Sonidos

Observ.

abelkinser

Fecha

Agosto 16, 2020

Fotos / Sonidos

Qué

Nopales Y Xoconostles Género Opuntia

Observ.

abelkinser

Fecha

Agosto 30, 2020

Fotos / Sonidos

Observ.

abelkinser

Fecha

Septiembre 17, 2020 02:50 PM UTC

Fotos / Sonidos

Observ.

abelkinser

Fecha

Septiembre 10, 2020

Fotos / Sonidos

Qué

Orquídea de Trenza Spiranthes magnicamporum

Observ.

micahbowman

Fecha

Septiembre 4, 2020 07:17 PM UTC

Descripción

Very dry, rocky hilltop adjacent to sandy slope.

Any advice about where to take measurements is greatly appreciated! 🙏

Fotos / Sonidos

Observ.

micahbowman

Fecha

Septiembre 4, 2020 06:26 PM UTC

Fotos / Sonidos

Square

Observ.

jnelson7408

Fecha

Agosto 31, 2020 08:10 AM CDT

Fotos / Sonidos

Qué

Guajito Chamaecrista nictitans

Observ.

abelkinser

Fecha

Agosto 16, 2020

Fotos / Sonidos

Observ.

abelkinser

Fecha

Agosto 16, 2020

Fotos / Sonidos

Observ.

abelkinser

Fecha

Agosto 15, 2020

Fotos / Sonidos

Qué

Lobelia Cardenal Lobelia cardinalis

Observ.

k2018lena

Fecha

Agosto 16, 2020 05:28 PM CDT

Descripción

WOOHOO! Bucket list! I have been looking for one of these for two years!!

Fotos / Sonidos

Fecha

Agosto 17, 2020 11:05 AM UTC

Descripción

Pale white flowers with pink veins and red centers. Toothy leaves. Buds are green with red veins. Brownish-red stems. Rose mallows?

Fotos / Sonidos

Fecha

Agosto 12, 2020 09:38 AM UTC

Descripción

Compass plant with bright yellow flowers attracting tiny pollinators.

Fotos / Sonidos

Observ.

ancientbean

Fecha

Agosto 5, 2020 02:12 PM UTC

Fotos / Sonidos

Observ.

skrentnyjeff

Fecha

Junio 25, 2020 11:53 AM CDT

Fotos / Sonidos

Square

Observ.

oldboy1990

Fecha

Julio 20, 2020 12:35 PM CDT

Descripción

Only bell flower in the woodland with white petals

Fotos / Sonidos

Observ.

micahbowman

Fecha

Julio 18, 2020 04:09 PM UTC

Fotos / Sonidos

Observ.

sanguinaria33

Fecha

Julio 19, 2020 05:00 PM CDT

Descripción

white form

Fotos / Sonidos

Observ.

sanguinaria33

Fecha

Julio 18, 2020 10:49 AM CDT

Descripción

first photo shows white flowered form

Fotos / Sonidos

Square

Qué

Hierba de la Celada Scutellaria galericulata

Observ.

elfaulkner

Fecha

Julio 13, 2020 01:18 PM CDT

Fotos / Sonidos

Observ.

xalopez19

Fecha

Septiembre 21, 2019 10:39 AM CDT

Fotos / Sonidos

Observ.

joelmc

Fecha

Julio 13, 2020 06:04 PM CDT

Fotos / Sonidos

Square

Observ.

micahbowman

Fecha

Julio 13, 2020 07:50 PM UTC

Fotos / Sonidos

Observ.

paulroots

Fecha

Julio 12, 2020 01:33 PM CDT

Descripción

the photos don't do it justice

Fotos / Sonidos

Qué

Salamandra Moteada Ambystoma maculatum

Observ.

brdnrdr

Fecha

Julio 1, 2020 09:47 AM CDT

Descripción

AMAZING

Fotos / Sonidos

Observ.

vvoelker

Fecha

Mayo 26, 2018 11:27 AM CDT

Fotos / Sonidos

Qué

Culebra Acuática Centroamericana Thamnophis proximus

Observ.

sanguinaria33

Fecha

Mayo 20, 2020 01:14 PM CDT

Fotos / Sonidos

Square

Observ.

calumetkathleen

Fecha

Mayo 7, 2020 04:50 PM UTC

Fotos / Sonidos

Observ.

abelkinser

Fecha

Mayo 18, 2020 05:32 PM UTC

Fotos / Sonidos

Square

Observ.

professorbeech

Fecha

Mayo 18, 2020 11:15 AM CDT

Fotos / Sonidos

Square

Observ.

sedge

Fecha

Mayo 9, 2020 01:23 PM CDT

Fotos / Sonidos

Observ.

robbmiller

Fecha

Mayo 1, 2020 03:03 PM HST

Descripción

This is a strange two-headed trillium that I have been tracking.

Weekly observations:

https://www.inaturalist.org/observations?verifiable=any&place_id=any&field:Similar%20observation%20set=43109561

Fotos / Sonidos

Square

Observ.

k2018lena

Fecha

Abril 30, 2020 07:50 PM CDT

Descripción

I didn't know they came in white! Growing alongside a bunch of more typical blue ones.

Fotos / Sonidos

Qué

Negundo Acer negundo

Observ.

andrewhipp

Fecha

Abril 12, 2020 10:39 AM CDT

Fotos / Sonidos

Qué

Tortuga de Concha Blanda Apalone spinifera

Observ.

krohling

Fecha

Junio 30, 2010 11:56 AM CDT

Fotos / Sonidos

Observ.

krohling

Fecha

Agosto 24, 2010 03:51 PM CDT

Fotos / Sonidos

Qué

Ajolote Atigrado Ambystoma tigrinum

Observ.

skrentnyjeff

Fecha

Abril 11, 2020 11:18 AM CDT

Fotos / Sonidos

Qué

Salamandra Moteada Ambystoma maculatum

Observ.

skrentnyjeff

Fecha

Abril 10, 2020 01:00 PM CDT

Fotos / Sonidos

Qué

Violetas Género Viola

Observ.

dziomber

Fecha

Mayo 18, 2019 11:33 AM CDT

Descripción

Floodplain woodland

The white-flowered form in these pictures are from the same population as in this observation:

https://www.inaturalist.org/observations/25603344

A few dozen clumps of this white form and purple form were growing mixed together, seemingly forming a single population. While both forms were similar in many respects, they also differed significantly. In fact, I imagine that each form might be interpreted as a different species if seen in isolation. And while they could possibly be separate species, I have a hard time believing that two separate species with such distinct similarities would be growing mixed together like this.

The purple form here fits the more conservative, pubescent woodland form of V. sororia pretty well, although the leaves may be slightly more acute and deltoid than typical.

The white-flowered form is harder to place. Its leaves are glabrous, except for the petioles and along the main veins abaxially, at least proximally (visible in the other observation I linked to). The peduncles are glabrous. And while the leaves are very similar in shape to the purple form, they seemed to be more consistently acute-tipped.

The white flowered plants would fit into V. sororia, perhaps V. sororia f. priceana if not for the deltoid leaves, although the total lack of purple veins on the petals isn't typical for V. sororia f. priceana. If the leaves were a little narrower, I'd say this was a white flowered form of V. missouriensis, although the pubescent petioles might be atypical.

Flower color, pubescence, and shape of the leaf tips seem to be linked in this population. If there were more variation within the forms, or less characters involved, I'd suspect this to just be a case of polymorphism. Yet there was no apparent gradation between the forms. I guess this could still be the result of mutations within a single population, but I'd also guess that this explanation would require that many genes would be involved in order to affect this many characteristics. It's unlikely that so many mutations could happen independently. So this would possibly require a major, non-lethal chromosomal mutation. Another potential explanation is genetic drift - that a number of recessive genes happened to become homozygous at the same time by chance. However, genetic drift has a stronger effect on smaller, more inbred populations. Anything in the V. sororia complex is unlikely to suffer from inbreeding in this area, where V. sororia is extremely common. Another possible explanation is a loss of function mutation in genes involved in the production of both trichomes and pigment.

Most of the potential genetic explanations I can think of rely on rare events or aren't quite applicable here. But "hybridization" would explain the variation within this population easily. Hybridization is considered to be frequent in many violet "species" with a number of "species" often considered to be varieties of the same highly polymorphic species. I presume that the purple form is one of the parents of the white form, since it fits a well known, more conservative form of V. sororia. I didn't find any plants nearby that may have acted as the other parent. I hypothesize that the other parent may have had white flowers and been entirely glabrous. V. sororia f. priceana is not uncommon in the area. But, if f. priceana were the other parent, that wouldn't be a satisfactory explanation for the entirely white petals and more acute leaves. Of course, both parents may have contributed a recessive allele for flower color or any other suite of characteristics. With that in mind, there is no reason to assume that V. missouriensis or V. affinis couldn't be the other parent. Both of these "species" are present on the site but uncommon, are mostly glabrous, and have pointed leaf tips. Of course, I may be placing too much importance on the subtle differences in leaf shape for the two forms here. In which case, V. sororia f. priceana or another one of the weedier glabrous forms of V. sororia would be the best candidate for the other parent.

The generally even number of both forms in this population is somewhat puzzling. And even if the differences here are the result of hybridization, I'd expect that there would be more gradation between the forms, unless the hybrid happened to be sterile or somehow couldn't backcross with the nearby purple form. But if this hybridization event was recent, these white forms might all be F1 hybrids. I plan to check out this population in the subsequent years to see if I can locate another putative parent or see if backcrossing occurs.