FROSTED ORACHE

Atriplex laciniata

Goosefoot Family [Amaranthaceae]

month8jul month8july month8aug month8sep month8sept month8oct

status
statusZnative
 
flower
flower8green
greenish-yellow
inner
inner8red
 
petals
petalsZ5
tepals
type
typeZclustered
 
stem
stem8round
 
stem
stem8angular
 
stem
stem8ribbed
 
sex
sexZmonoecious
 

21st July 2015, Norton Spit, Isle of Wight. Photo: (CC by 2.0) Geoff Toone
Frosted Orache is the paler-green plant in the bottom right corner with frosted leaves.


21st July 2015, Norton Spit, Isle of Wight. Photo: (CC by 2.0) Geoff Toone
It grows in shingle on the shore just above the strand-line. It is usually decumbent, as here, sprawling about - from 30cm (but up to 50cm long on occasion).


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone
It is mostly decumbent here with just the inflorescences being erect, the rest of the plant is sprawling horizontally.


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone
The stems are reddened beneath the white 'frosty' marks. The flowers are unisexual, usually with only male flowers or only female flowers. Here, with anthers showing, obviously male.


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone
The leaves are heavily frosted each side and have usually have a either triangular taper to the end, or broad-oval but still with irregular lobes, which are mostly not pointed at the tip.


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone
21st July 2015, Norton Spit, Isle of Wight.


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone


8th July 2010, Duver, St. Helens, IoW. Photo: (CC by 2.0) Geoff Toone
A part of the top part of a leaf showing white or yellow-orange sand grains nestling on top whilst the leaf itself is pockmarked with a dense covering of very tiny white craters.


6th Sept 2015, Sefton Coast, Crosby, Merseyside. Photo: © RWD


6th Sept 2015, Sefton Coast, Crosby, Merseyside. Photo: © RWD


6th Sept 2015, Sefton Coast, Crosby, Merseyside. Photo: © RWD
The very frosted fruits. They are ± symmetrical about a vertical axis; have 6 sides in a roughly hexagonal shape with two opposite ± parallel sides with protruberances on the surface on roughly the lower half.


6th Sept 2015, Sefton Coast, Crosby, Merseyside. Photo: © RWD
The bracteoles (there are 3 in the photo: two at the top and one beneath them) of the fruits are 6 to 7mm long (up to 10mm) and rhombic in shape [centre top] and are fused together until half-way. They may or may not have short teeth (this one has some).

The large 'bobbles' on their surfaces are called tubercles.



6th Sept 2015, Sefton Coast, Crosby, Merseyside. Photo: © RWD
The graininess of the white coating (their 'frosting') which is on everything : stem, bracteoles, leaves.


Some similarities to other Oraches with silvery-green leaves: Shrubby Orache (Atriplex halimus), Babington's Orache (Atriplex glabriuscula), Common Orache (Atriplex patula), Sea Purslane (Atriplex portulacoides) and the very rare [RRR] Peduncular Sea-purslane (Atriplex pedunculata).


  Atriplex laciniata  ⇐ Global Aspect ⇒ Amaranthaceae  

Distribution
 family8Goosefoot family8Amaranthaceae
 BSBI maps
genus8Atriplex
Atriplex
(Oraches)

FROSTED ORACHE

Atriplex laciniata

Goosefoot Family [Amaranthaceae]