Flora of North America species comparison

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Rumex subg. Platypodium
Habit Plants synoecious, with basal rosette of leaves usually not persistent at maturity.
Stems

ascending, spreading, or almost prostrate, occasionally erect.
Leaf

blades spatulate, lanceolate, or ovate-lanceolate, rarely rounded, base cuneate.
Pedicels

articulated in distal part, usually heteromorphic: some curved, swollen, and clavate, others straight, not swollen, and cylindric.
Flowers

normally bisexual;

outer tepals not spreading;

inner tepals enlarged, often heteromorphic, (1.5–)2–4(–5) mm, equaling or slightly wider and longer than achenes, margins usually dentate;

tubercles very small, or absent.

Rumex subg. Platypodium
Distribution
s Europe; sw Asia; n Africa [Introduced in North America; occasionally introduced in other regions]
Discussion

Species 1.

Sometimes subg. Platypodium is recognized as a separate genus, Bucephalophora, together with other segregates from Rumex in the broad sense (see Á. Löve and B. M. Kapoor 1967).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 532.
Parent taxa Polygonaceae > subfam. Polygonoideae > Rumex
Subordinate taxa
Synonyms R. section Platypodium, subg. Bucephalophora, R. section Heterolapathum
Name authority (Willkomm) Rechinger f.: Bot. Not. Suppl., 3(3): 106. (1954)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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