Monday, October 19, 2020

Common Gromwell and Common Calamint

This will be the last blog for a while as I am largely seeing only what I have already focused upon. 

It seems appropriate that by chance it will cover two species that despite their names are not particularly common and in the case of Common Calamint declining. 

  • Common Gromwell, Lithospermum officinale
  • Common Calamint, Clinopodium ascendens
Common Gromwell

I found this by chance at the end of a walk in the Cannop area of the Forest of Dean. I only saw the one plant and knew I'd not seen it before, but luckily from the similarity of the one flower to a Forget-me-not and therefore the Boraginaceae family, identified it from Simon Harrap's Wild Flowers. Thanks to the #Wildflowerhour community on Twitter for confirming it. 

It grows in some southern parts of the UK but is less common elsewhere. It is native to Europe and Eastern Asia and has been introduced to other regions including North America.

 


The cream flower is so small it is a key ID feature. The plant is tall, hairy, with alternate, narrow and  spear-shaped leaves. The veins are conspicuous.

A few days later after heavy rain I went back hoping to find a colony and I did. Over 400 metres or so of the open woodland ride there are many plants. There were thousands of seeds which bodes well for the future here.



The 5 narrow sepal teeth clasp around the fruits. Sepals have longish hairs on the outside. The hard egg-shaped fruits change colour as they mature, the shiny white like porcelain being the last stage.





The rather mysterious name comes from the Old French gromil, modern French grémil. The gré suggested grey and the fruits themselves grains of mil or millet. Gromwell also came known as milium solis, 'millet of the sun'. It grows here on a largely cleared woodland hillside in full sun.

Its local name in the north of England, Stony-hard, reflects its herbal medicine use in the sixteenth and seventeenth century against stones. It may have been the lithospermon or 'stone-seed' of Dioscorides and indeed can be called European Stoneseed. It has been used widely, for example against gout, as a diuretic and as a contraceptive.


Common Calamint

I first found this hairy herb from the Lamiaceae family in the Forest of Dean Cannop area last year and returned hoping to find it again. I think it had increased at the top of the spoil heap, a dry area that suits it well. Again thanks to the #Wildflowerhour expert who agreed the ID.



The flowers are whitish-pink with small purple spots on the lower lip. The leaves, with shallow and blunt teeth, are short-stalked with curved veins and smell distinctly of mint. The upper lip of the corolla is flattish and has a notch at the top. The lower lip is short and three-lobed. There are four stamens, two unequal stigmas and one style.









The calyx has five teeth, the lower two are slightly longer and narrower. I hope that can be seen here along with the hairs.

It was a very windy day so I took a tiny piece for macro pics at home leaving plenty behind. It is a plant that is decreasing in its range. The reasons include lack of control in its grassland habitats and changes in road verge management. However, it is now better recorded particularly in East Anglia and Somerset. 

It is native to temperate areas of Europe and used as a culinary herb in Italy. In Madeira, where it is known locally as neveda, it is used as a mouth freshener and to alleviate headache and toothache. It was known to Culpepper who writes of its usefulness in easing brain afflictions, leprosy, convulsions, cramp and yellow jaundice.


Acknowledgements

Simon Harrap's Wildflowers

Stace 4

Rose The Wild Flower Key

Grigson The Englishman's Flora

www.researchgate.net/

www.brc.ac.uk/

www.wildflowerfinder.org.uk/

www.wildflowerweb.co.uk/

www.geograph.org.uk/

www.first-nature.com/




Monday, October 5, 2020

Scarlet Pimpernel, Sticky Groundsel and Black Nightshade

 These three were found near the railway station in Lydney, Gloucestershire and photographed over a couple of months to catch the seed heads.

  • Scarlet Pimpernel, Lysimachia arvensis
  • Sticky Groundsel, Senecio viscosus
  • Black Nightshade, Solanum nigrum


Scarlet Pimpernel, Lysimachia arvensis

This native plant, usually an annual, from the Primulaceae family has a number of names that refer to its sensitivity to light: Poor Man's Weatherglass in Somerset, Weatherflower in Dorset and Wink-and-Peep in Shropshire. The flowers open in good light at about 8am and close about 3pm. They will close or remain closed in dull, wet, or humid conditions.



The five petals have a reddish-purple base and there are five sepals and five stamens with bright orange anthers.


It has a square stem, the leaves are opposite and always face the light with the solitary flowers on stalks in the leaf axils.



The seed capsules are urn shaped splitting around the circumference to divide into two halves to enable the wind to scatter the seeds. The stalk, which is initially straight, curves back as the seed ripens. The stalk curve and the developing split can be seen here.



Grigson describes the split seed capsule hinging backwards like a crested skull-cap. I can see what he means!



Herbally it was used against many afflictions: toothache, snake bites, epilepsy, kidney problems to just begin. 

It was credited with relieving eye problems. In Ireland it was a "blessed herb" and if held in the hand it was said to give second sight and hearing, plus allowing the holder to understand the speech of birds and animals.

It appears in the Herbals and Vocabularies of the sixteenth century as Bipinella and its use as a cosmetic herb persisted until the nineteenth century when Pimpernel Water was used to bleach freckles.

Pliny refers to its value in treating liver complaints and the former botanical name Anagallis , given by Dioscorides, is said to be derived from the Greek to laugh and indeed the herb was used to dispel sadness. 

Local names in Somerset include Laughter Bringer and Shepherd's Delight.

If you were in any doubt about the effect of this plant here is an unattributed rhyme:

No heart can think, no tongue can tell

          The virtues of the Pimpernel. 

 

There will be new plants in bloom again next April.....



Sticky Groundsel,  Senecio viscosus

I saw this growing in a classic habitat for it: disturbed ground on gravel in a man-made habitat: a railway car park. At first I just thought it was a stunted Ragwort but then I realised it was the locally common - but never before seen by me - Sticky Groundsel. The fine ray-florets which quickly turn downwards are key to ID.


 The stem is wavy and well branched. 



The foliage is covered in sticky glandular hairs which can be seen too on the calyx above .






I read about the naming of the genus Senecio from senex meaning old man. A sixteenth century herbalist wrote:

The flower of this herbe, hath white heere, and when the wind bloweth it away, then it appereth like a bald headded man therfore it is called Senecio.

In the photos below you can see exactly what he meant. The seed-heads leave behind a round head-like shape which is slightly shiny.






The seeds are brown, cylindrical and ribbed.

 This member of the Asteraceae family is a naturalised neophyte. It was recorded in Britain by John Ray in 1660 who noted it was plentiful in the Isle of Ely. It may be native on sandy and gravelly soils. 

Here it probably came in on the gravel/ chippings for the car park and it is thriving. Several plants are in the vicinity of this one.

It has the following local names: Ashwort which is interesting, Stinking Groundsel interesting and helpful, and Sticky Ragwort probably unhelpful! 


Black Nightshade, Solanum nigrum

A member of the Solanaceae family this is a native and introduced. Here it sprawls through a hedge near the old railway line down to Lydney Harbour. It is a common annual and a cosmopolitan one spreading almost around the globe in appropriate habitats. Wikipedia says it is native to Eurasia and introduced to the Americas, Australasia and South Africa.




It has white petals initially spread flat then bent back. The anthers are long and yellow. There is a single lime-green semi-globular style protruding from the anthers.



The stem is a dark purple-black, variably hairy and the leaves dark green, wrinkly and variably toothed.

 


It has the reputation of being poisonous and it was called Petty Morel by the older herbalists to distinguish it from Great Morel - Deadly Nightshade. Culpepper warns "Do not mistake the deadly nightshade for this, if you know it not, you may then let them both alone"! It contains Solanine in varying strengths according to the season. Most cases of poisoning result from eating the leaves or unripe fruit. The green unripe fruit can be seen forming here. The berries turn a shiny black when ripe.




It has a long history of medicinal use but was considered a risky remedy. One or two grains of dried leaves were infused with boiling water and used to induce sweating. Bruised fresh leaves applied externally were said to ease pain and inflammation. In the Middle East the leaves were applied to burns and ulcers.  

Surface applications are considered much safer than internal ones!

I plan another blog on plants of Gloucestershire soon. Thank you for reading this one.

Acknowledgements


Simon Harrap's Wild Flowers
Stace 4
Grigson The Englishman's Flora
Mabey Flora Britannica
Wikipedia
http://botanical.com/
http://seasonalwildflowers.com/
http://wildflowerfinder.org.uk/
http://www.wildflowerweb.co.uk/
www.brc.ac.uk