Anagallis foemina vs Anagallis arvensis

How to distinguish Anagallis foemina and Anagallis arvensis:

1a - Petals red or blue, obtuse or truncate at apex. Glandular hairs on petals margin many and dense, 3-celled: A. arvensis.

1b - Petals blue, often subacute at apex. Glandular hairs on petals margin lacking or few and scattered, 4-celled: A. foemina.

Posted on May 2, 2018 05:57 PM by blue_celery blue_celery

Observations

Comments

There are also differences in the overall growth and structure, right? I feel like I remember learning that somewhere. One looked more perennial than the other.

Posted by silversea_starsong almost 6 years ago

"There are also differences in the overall growth and structure, right?"
I would not bet a cent on it despite someone said that there are differences in pedicels:bracts ratio. I cannot cofirm this difference.
Here in a mediterranean climate they are both truly annuals even though there are other species which are suffruticose perennials.

Posted by blue_celery almost 6 years ago

@abr Since I saw you mentioning the two species recently, maybe you could chip in.

Posted by silversea_starsong almost 6 years ago

Hi blue, is this plant also found in Italy?
Is it a pinata or is it?
Thanks.
Marco

Posted by naturalista1989 about 4 years ago

Hi ! I know this is a post from two years ago but I have a question. So if i see these in the wild there's no way to identify them I just say that it is either this or that ?

Posted by bourasgr almost 4 years ago

almost no way without a linen tester or a microscope... :-(

Posted by blue_celery almost 4 years ago

It is visible in macro photos if there is enough magnification, as well. Even on your observations linked above.

Posted by silversea_starsong almost 4 years ago

Okay, blue.
Good evening.
Marco

Posted by naturalista1989 almost 4 years ago

@blue_celery A question from a learner. When it states one is 3-celled and the other is 4-celled, what is the structure referenced?

Posted by connlindajo almost 4 years ago

Start counting hairs cells from the first unpigmented or pinkish cell (not bue)

Posted by blue_celery almost 4 years ago
Posted by franpfer about 2 years ago

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