KNOTTED HEDGE-PARSLEY

Torilis nodosa

Carrot Family [Apiaceae]

month8may month8jun month8june month8jul month8july

status
statusZnative
flower
flower8white
morph
morph8hemizygo
petals
petalsZ5
type
typeZumbel
stem
stem8round

26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The leaves are 1- to 2-pinnate and finely-cut.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The flowers (and subsequently fruits) are opposite the leaves and held very close to the main stems.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The have a few forwardly-directed hairs. The hairs on the main stem are also appressed and angled downwards.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The flowers are tiny, and are in small umbels without bracts on very short stalks and have 5 white, slightly zygomorphic petals. The long slightly-tapering stout burrs (aka spines) on the oval fruits are minutely hooked at their ends. The umbels consist entirely of hermaphrodite (aka bisexual) flowers. The umbels are also compound on very short but stout rays (with 2 or 3 umbellets); there are two umbellets here - one still flowering, the other turned to fruit (you can just see the ray of the lower umbel).

There are no bracts below the umbel, but there are linear bracteoles (here not discernible) beneath the umbellets.



26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The fruits are between 2.5 and 3.5mm long. Note that it is only the outer-facing part of the fruits which are covered in these burrs aka spines; the inner facing part is covered in straight lines of tiny warty objects (which are best discerned on the left-most fruit.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
Stems procumbent to ascending. Stems slightly grooved/ribbed depending upon your perspective and which part of stem you look at. The white flowers are tiny, and bunched very close together (they are much smaller than the small, white, mostly un-opened, also-clustered flowers of Rough Clover dotted about the photo).


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
Stems here all procumbent, growing to 50cm long (nothing like that in this specimen although you cannot necessarily see all of it here) and sprawling between many other species of plants from Daisy, Cinquefoils, Rough Clover (there is a lot of that in this photo) and an un-identified round, almost veinless, leaf. [Your Author has placed this photo further down the page so that the reader will now know which of the many plants in this photo are those of Knotted Hedge-parsley].


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
Just left of dead centre: flowers tiny, just opening. Centre: opened flowers. Below left of centre: the burred fruits.
[The other white/pink flowers or those turning brown around it are those of Rough Clover]


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The tiny white clusters (umbels) of flowers are held close to the stem and opposite the leaves.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
Most of the tiny flowers have turned to much larger fruits on this somewhat contorted (curved) specimen.


26th June 2019, flanks of Great Orme, Llandudno, North Wales Photo: © RWD
The older fruits have developed long white slightly-hooked burrs; the newer ones above those have not yet developed them.


Some similarities to : : Upright Hedge-Parsley (Torilis japonica) but that grows erect and much taller to 1.2m high, the leaves ar between 1 to 3-pinnate (rather than 1 to 2-pinnate), and the fruits (mericarps) have burrs which are curved (instead of straight as on Knotted Hedge-parsley) and the umbels and umbellet both have bracts (absent on Knotted Hedge-parsley).

Uniquely identifiable characteristics

Distinguishing Feature : the very compact, tightly-packed umbel of really tiny white flowers.

It grows inland on rather bare ground in arable fields but especially well on dry sunny banks near the sea. Found in scattered locations south from the south east of Scotland, down to the South Coast. It is especially prominent in the East of England.


  Torilis nodosa  ⇐ Global Aspect ⇒ Apiaceae  

Distribution
 family8Carrot family8Apiaceae
 BSBI maps
genus8Torilis
Torilis
(Hedge-Parsleys)

KNOTTED HEDGE-PARSLEY

Torilis nodosa

Carrot Family [Apiaceae]