St John's-wort Family [Hypericaceae] |
status
flower
inner
morph
petals
stem
stem
(2)toxicity
sex
27th July 2008, Bouldnor, IoW. | Photo: (CC by 2.0) Hilary Higgins |
According to Clive Stace it is supposed to have round stems with just 2 short wings each side and growing to 80cm high, but this specimen has square stems. It is an erect and hairless perennial with a rhizome root system |
5th July 2014, Rimrose Valley Country Pk, Sefton, Merseyside. | Photo: © RWD |
From the top down. |
5th July 2014, Rimrose Valley Country Pk, Sefton, Merseyside. | Photo: © RWD |
The petals (and sepals) are mostly devoid of black glands. |
27th July 2008, Bouldnor, IoW. | Photo: (CC by 2.0) Hilary Higgins |
Going to fruit at the top of the inflorescence. |
2nd July 2008, quarry, Tapnell, IoW. | Photo: (CC by 2.0) Geoff Toone |
2nd July 2008, quarry, Tapnell, IoW. | Photo: (CC by 2.0) Geoff Toone |
This specimen might be the most convincing specimen of Perforate St John's-wort here with both round stems (with two slight ribs) and no black dots on the petals and sepals. |
Photo: © RWD |
Whereas this specimen has black streaks on the petals. |
29th July 2008, Westover Plantation, IoW. | Photo: (CC by 2.0) Hilary Higgins |
Black dots on the edges of leaves. |
Photo: © RWD |
The translucent dots are best seen against the light. |
27th July 2008, Bouldnor, IoW. | Photo: (CC by 2.0) Hilary Higgins |
This specimen also anomalously has square stems. |
Photo: © RWD |
With no black dots on either sepals or petals this might be another good example of Perforate St John's-wort. |
Photo: © RWD |
The sepals also conform with Perforate St John's-wort with those being about equal in length, entire (without teeth) and tapering to a point. |
Photo: © RWD |
And it also has the requisite black dots and translucent marks on the leaves plus the stems are round (err, ish)... |
Photo: © RWD |
The leaves on the main stem are usually widest near their base and stalkless and nearly clasping the stem. |
16th Feb 2007, Mottistone, IoW. | Photo: (CC by 2.0) Mike Cotterill |
The fruit are a striking brilliant red. |
16th Feb 2007, Mottistone, IoW. | Photo: (CC by 2.0) Mike Cotterill |
The fruit. |
16th Feb 2007, Mottistone, IoW. | Photo: (CC by 2.0) Mike Cotterill |
The scarlet-red fruit. |
A Hybrid (?) with Imperforate St John's-WortDes Etangs' St John's-wortHypericum × desetangsii |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
They are certainly tall comensurate with it being a hybrid. |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
The sepals on Des Entangs' St John's-wort are somewhat unequal. |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
The sepals and petals on Des Entangs' St John's-wort are not largely bereft in black dots (or even black striations). |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
But Des Entangs' St John's-wort are also supposed to have sepals which are minutely toothed, but your Author cannot see any minute teeth. |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
Des Entangs' St John's-wort still have the black dots and translucent white dots of Perforate St John's-wort |
23rd Aug 2015, dirt track, nr. Warrington, Cheshire. | Photo: © RWD |
Said to be the main identifying feature of Des Estangs' St John's-wort the alternating round and then square parts of the stem, here round, square, round, square and round again, changing at stem junctions. |
18th July 2007, canalside, Macclesfield canal, Croker. | Photo: © RWD |
Another tall example of Des Etangs' St John's-wort(?)
This has two opposing narrow ridges down the stems, which then turn squarish in places. Perforate St John's-wort likes dry grassy places (its certainly grassy on the edge of the canal towpath, but not necessarily dry) whereas Imperforate St John's-Wort likes damp places - it is therefore possible that this specimen is also the hybrid between the two - especially since closer inspection of the stems reveals a certain squareness to the stem in places (which is characteristic of that hybrid). This hybrid, if that is what it is, is fairly common, and it is tall! (as hybrids tend to be). |
Hybridizes with :
It is native amd the most abundant species of St John's-wortin England, but is rare in North scortland. It occurs in dryish grassland, open woods and banks. Like all St John's-worts it is puroportedly used in folklore medicine, but its' often toxic effects on any other conditions the patient may have are so numerous that this use should be discontinued, unless prescribed by a real doctor who knows what other ailments you may have and which drugs to combat them you may be taking. Mostly, the compounds in St John's-worts interfere with or completely stop many other pharmaceutical drugs the user may be taking from working!
It contains the following substances, amongst many others:
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Hypericum | perforatum | ⇐ Global Aspect ⇒ | Hypericaceae |
Hypericum (St John's-Worts) |
St John's-wort Family [Hypericaceae] |