OR R. conglmeratus × R. obtrusifolius = R. × arbortivus.
Both [CHR 596149 & CHR 596150] have very narrow tepals with 3 huge tubercles, which is how R. conglomeratus seeds look.
Other identifications
Identification
Determined name:
Rumex obtusifolius L.
Determiner:
D.J.C. [Campbell DJ]
Identification date:
1971-07-21 (Verbatim: 21.7.[19]71)
Preferred name:
Rumex obtusifolius L.
Active:
no
Identification type:
Determination
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Delta Lodge, Orongorongo
Georeferences:
Latitude and Longitude (WGS84):
-41.415 174.908
Verbatim locality:
Near Delta Lodge, Orongorongo
Verbatim collector:
D.J. Campbell
Standardised collector:
D. J. Campbell
Verbatim date:
21.7.[19]71
Start date:
1971-07-21
Country:
New Zealand
Land District:
Wellington Land District
Native lands:
Ngāti Toa Rangatira
Rangitāne
Taranaki Whānui ki te Upoko o te Ika
Te Atiawa (Wellington)
Georeferences:
Latitude and Longitude (WGS84):
-41.415 174.908
Habitat:
River bed
Specimen notes
Herbarium history:
Transferred from John Campbell, Ecological Research Associates. Date: 7 October 2005. No. 1283