OXTONGUE BROOMRAPE

Orobanche picridis

Broomrape Family [Orobanchaceae]

month8jun month8june month8jul month8july month8aug

status
statusZnative
flower
flower8white
inner
inner8cream
inner
inner8brown
morph
morph8zygo
petals
petalsZ5
type
typeZspiked
type
typeZtubular
stem
stem8round
rarity
rarityZrare

30th June 2009, western quarter, IoW. Photo: (CC by 2.0) Mike Cotterill
Oxtongue Broomrapes on a hillock near an impressive landslip on the coast.


7th June 2007, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
Quite a colony of Oxtongue Broomrapes


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The flowers are up to 60cm high and yellowish-white with a hint of a purple tinge.


7th June 2007, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
With the cusp-toothed leaves of one of its host plants, a species of Crepis, being a Hawksbeard. [It can also parasitise Hawkweed Oxtongue Picris hieracioides].


29th June 2009, western quarter, IoW. Photo: (CC by 2.0) Mike Cotterill


7th June 2007, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The stems are yellowish tinged with purple (at least in the upper half of these specimens). The single bract just below the sepal tube on all but one Broomrape can be seen here (the exception is Yarrow Broomrape with its distinctive two bracts [which are also short]).


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The stigmas are purple (here more like broad pink tongs curling out and downwards, wider at the end.


29th June 2009, western quarter, IoW. Photo: (CC by 2.0) Mike Cotterill
Top half


29th June 2009, western quarter, IoW. Photo: (CC by 2.0) Mike Cotterill
Bottom half. The plant is usually hairy as here, only occasionally hairy. A single bract at the base of each flower is present.


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
Open wide, this wont hurt... Are those your tonsils?


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
No, they are my stigmas.


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The hairs on the flower are glandular (bobbles at tips). The pink-purple stigma is definitely in two partially fused parts.


29th June 2006, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The anthers (now brown and opened) are visible in this photo but anthers are not a feature by which species of Broomrape can be differentiated. But the filaments is: whether it is hairy, or not, and if so, the extent of the hairs and whether glandular or not. Dismembering a flower is usually necessary in determining this and of the height of the boss from which the filaments emerge.


7th June 2007, western quarter, IoW. Photo: (CC by 2.0) Geoff Toone
The petals are purple-veined, here with splashes of yellow (where it might be browning?). The 2 stigmas and empty anthers just below them.


No relation to : Oil-Seed Rape (Brassica napus ssp. oleifera) [a plant with similar names belonging to a differing family].

See the pull-out table below for comparisons with other Broomrapes and all their identifying and delineating characteristics.


OROBANCHE (BROOMRAPE) COMPARISON TABLE (shrunk)


  Orobanche picridis  ⇐ Global Aspect ⇒ Orobanchaceae  

Distribution
 family8Broomrape family8Orobanchaceae

 BSBI maps
genus8Orobanche
Orobanche
(Broomrapes)

OXTONGUE BROOMRAPE

Orobanche picridis

Broomrape Family [Orobanchaceae]