Help with I.D

[stevecurtis]

Help with I.D please




all the best steve.

[Dorts]

Steve
No.1 is a St. John's Wort. Judging by its apparent size, and from what I can see of the stem, I,d go for Hairy St. John's Wort - Hypericum hirsutum
Not easy to tell without seeing some of the details required for a correct ID.

No.2 is Black Mustard - Brassica nigra.
Dorts.

[Hedera]

I agree with both. The leaves on the Hairy St.John's wort look very veined and there are some spots.

[Tiggrx]

Hard to see much detail for no.2, but looks more like Hedge Mustard (Sisymbrium officinale) than Black Mustard to me

[aeshna5]

Originally Posted by Tiggrx

Hard to see much detail for no.2, but looks more like Hedge Mustard (Sisymbrium officinale) than Black Mustard to me

Looks like Hedge Mustard to me too!

[Dorts]

Originally Posted by Tiggrx

Hard to see much detail for no.2, but looks more like Hedge Mustard (Sisymbrium officinale) than Black Mustard to me

Yes, of course you are quite right. Hedge Mustard it is. By far the more common species. It was a case of recognising the plant but putting down the wrong name! I think the old brain must be going!
Dorts.

[stevecurtis]

Thank you for all your help ,please can you tell me what I.D features you use to tell Hedge Mustard from Black Mustard in the photo, thanks.

All the best Steve

[Dorts]

Originally Posted by stevecurtis

Thank you for all your help ,please can you tell me what I.D features you use to tell Hedge Mustard from Black Mustard in the photo, thanks.

All the best Steve

Steve
Hedge Mustard - Sisymbrium officinale is by far the more common of the two and is very distinctive with its many long, wirey stems criss-crossing horizontally. Grows to 1m.
Flowers pale yellow, small 3mm. Whole plant covered in short-fine hairs. Common on waste ground.

Black Mustard - Brassica nigra is far less distinct except for its height which can be over 2m. Flowers are yellow and large, 14-16mm. Whole plant greyish-green, more upright with flowering stems at <>45 degree to main stem, not horizontal. Not at all so common. Usually a relic of cultivation.

These yellow flowering members of the cabbage family (and the white ones also), can be quite difficult to ID, it just takes time and not a little patience!.
Dorts

[stevecurtis]

Brilliant Dorts thanks for the I.D differences as always you’re a great help. Looking in the books I also noticed that the bottom leaves look different ,not sure if that’s anything to go on .


All the best Steve