Σεπτέμβριος 12, 2021


Αναρτήθηκε στις Σεπτέμβριος 12, 2021 0811 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Σεπτέμβριος 08, 2021


Common Fumitory - fumaria officinalis - This is the most often seen naturalized here


Common Ramping Fumitory -Fumaria muralis seems to pop up too

Guides to Fumitory in the UK



Αναρτήθηκε στις Σεπτέμβριος 08, 2021 0724 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Σεπτέμβριος 03, 2021

Ιούλιος 28, 2021

Invasives projects

Ideas for changing our project:

Oregon switched to an automatic collection project. It automatically collects all the observations of the desired species from the desired area. That's why they are dusting all the other areas in number of records!


NatureServe has an umbrella project. Nice to see how we rank with others... but also potentially a useful thing for us to consider if we want mini-projects within an umbrella project (eg early detection species, high priority species, and everything else).


We will get a LOT of data with collections projects, and a lot of it may not even be accurate. I see there are a few observations of alligatorweed, for instance, that I seriously doubt are alligator weed. There will also be a lot of horrible pictures and data that should have been marked cultivated but wasn't.

Maybe make two collection projects for early detection and priority species, and then a regular project for the rest? Then an umbrella project for the three projects? possibly retire the current project and add it as a fourth?

Copyright regs? I have little knowledge of this, but some people have copyright restrictions on their pictures. This will automatically put their observations on our project without their consent. Most people have very lenient restrictions that we abide by (giving credit to the photographer) and most people also want their data to be used for these kinds of projects... but if we are going to continue to use pictures for this we might want to see if we can exclude people with tighter restrictions because I don't think we can always make that assumption? Probably Amy has a better idea about this than I do, though.

Even without collections projects, we have added a number of observations with no copyright permissions. If they are part of the project they have consented, but if they are not they haven't read the project rules. There are some that currently don't allow use of pictures, and I suppose there is always the possibility that a user might change copyright restrictions... is it retroactive? how would we prove it?

Date is month and year for obscured observations now. Can we just enter under the 15th if the user doesn't give a date?

I have been making a note when I enter something directly into iMap so that we don't enter it again from iNat. is this good enough?

Αναρτήθηκε στις Ιούλιος 28, 2021 0529 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Ιούλιος 26, 2021

Trapa natans notes

Jotted some notes during water chestnut training - currently early detection is a priority because there is not much spread!

Indigenous to Europe, Asia and Africa
brought to Mass. by water gardeners in 1800s
Rooted - has leaves in two forms, Floating and submerged
the floating leaves are triangular, with toothed margins, the top is glossy, the underside has small hairs, and they are kept afloat with bladders
Nothing was said about the submerged leaves
Flowers are small with 4 petals. They appear in the center of the rosette in mid-July
Fruit is a nutlet with 4 spiny projections. it is able to penetrate shoe leather
Old black nuts float, but are generally not viable. Green to brown nuts are viable.
Report any sighting - fruit or plant!
Stems and Roots - roots are finely branched

It has a high reproductive rate making about 15 nuts per season. Nuts can be viable for 12 years
Even if you pull plants, remaining seeds can propogate so you have to continue to return for many years to eradicate.
No known look-alikes (except mosaic plant!! but that is in a different family so probably flowers and fruits are different too and is not said to be invasive).

Spreads by rosettes breaking apart and attaching to boats. Nutlets can attach to waterfowl who take them to a new location.

Αναρτήθηκε στις Ιούλιος 26, 2021 0236 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Ιούλιος 08, 2021

Taxonomic tree

I love the taxonomic tree and iNat certainly has played a big part in solidifying the structure in my mind in a comprehensible way. But in some perverse way I also love to come across it's shortcomings and imperfections. For those who so stringently admonish those who would use vernacular instead of scientific terms, be aware that the system has a long ways to go... and alienating laypeople by insisting on scientific names over common for the sake of this system isn't really helpful.


an interesting forum discussion

List of different organizations for taxonomy of plants - there is no single authority.
Catalog of Life
Plants of the World Online

How iNaturalist uses data from other organizations to create its taxonomic tree

Interesting and semi-related -

When homonyms get confused on iNaturalist, they wind up in the "Life" category

definition of hemihomonym

paranyms are also fun, like Micrommata and Micromata. Nobody seems to be making lists of these, though.

Αναρτήθηκε στις Ιούλιος 08, 2021 0351 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Ιούνιος 01, 2021


Three common non-native Corydalis in our area: C. Incisa (invasive), C. solida and C. cava.
All usually have purple flowers or some hue close to that.

Corydalis Incisa

Pictures of Corydalis Solida in most stages

C. cava has sepals with no divisions in them, otherwise easily confused with C. solida.

Αναρτήθηκε στις Ιούνιος 01, 2021 0230 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Μάρτιος 11, 2021


Five types of Thalictrum in PA
Thalictrum pubescens - Tall meadow rue

Thalictrum Dasycarpum

Thalictrum dioicum - Early Rue - I covet this for an early bloomer. Blooms in April/May in Pennsylvania, Fruits in May

Thalictrum revolutum - Waxy Meadow Rue

Thalictrum thalictroides - Rue anemone
very common - I've seen in wooded areas.

Αναρτήθηκε στις Μάρτιος 11, 2021 0256 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο

Ιανουάριος 06, 2021


This observation mentions how to tell the difference between commonly confused species with regards to flowers:
https://www.inaturalist.org/observations/41937090 where rherold says
"There are three common yellow flowered shrubs/trees in this area whose flowers are easily confused: Cornus mas, Lindera benzoin, and Sassafras albidum. Cornus mas is not native, but has become naturalized in some areas.

Looking at the flowers only, since they're in most iNat pics (pardon my ignorance of proper terminology):

Cornus mas has four parted flowers (4 petals, etc) on skinny, long pedicels, perhaps 10 to 20 per inflorescence. The inflorescence has four bracts at the base, and is usually on a stubby branchlet. Cornus officinalis from east Asia is very similar

Lindera benzoin has six parted sessile flowers (no pedicel), typically less than 10 per inflorescence. The inflorescense is attached directly to the sides of a branch with little or no 'branchlet'.

Sassafras albidum also has six parted flowers, with long branched pedicels, with 10 to 20 per inflorescence. They are typically on the tip of a branch. It tends to bloom a bit later than the previous two.

Numbers are approximate, your mileage may vary."

When looking at the leaves only, there are a long list of confused species, especially those with red berries. Most of these can be reasonably excluded because they are opposite or dentate. Ones that cause me some concern are:
sassafras (Sassafras albidum) - mostly it can be excluded because there are mitten and 3-fingered leaves mixed in, but it seems like I've seen some young examples with simple leaves much like spicebush. It is in the same family, and there is some resemblance. Looks like sassafras with simple leaves has a blunter apex and a thicker look to the leaf.

Pawpaw (Asimina triloba) - these leaves seem somewhat weightier towards the end, kind of teardrop shaped, but with a point. The stems seem thicker and slightly winged? However it seems like they could be easily confused with spicebush.


Sweet leaf (Symplocos tinctoria) leaves grow outwards in all directions, while spicebush grows at an angle to the stem up the stem. stems are yellower - spicebush has light green stems and veining.

Carolina Buckthorn (Frangula caroliniana) - occurs in the Southeast. leaf shape resembles spicebush, but arrangement on twigs is in all directions, leaves seem deeper green, and the twig seems reddish brown and hairy. Should not be an issue in PA.

California sweetshrub (Calycanthus occidentalis) - great confounder, but shouldn't occur outside of the CA area. I should go through these periodically and see if spicebush has been misidentified to this. After review, it seems like it is cultivated (or cultivated and escaped) often in the eastern US. note - leaves are opposite.

Αναρτήθηκε στις Ιανουάριος 06, 2021 0404 ΜΜ από aphili8 aphili8 | 2σχόλια | Αφήστε ένα σχόλιο

Δεκέμβριος 15, 2020

Fly ID

Αναρτήθηκε στις Δεκέμβριος 15, 2020 0741 ΜΜ από aphili8 aphili8 | 0σχόλια | Αφήστε ένα σχόλιο