Rumex subg. Platypodium

(Willkomm) Rechinger f.

Bot. Not. Suppl., 3(3): 106. 1954.

Basionym: Rumex sect. Platypodium Willkomm in H. M. Willkomm and J. M. C. Lange, Prodr. Fl. Hispan. 1: 284. 1862
Synonyms: Undefined subg. Bucephalophora Pau Rumex sect. Heterolapathum Nyman
Treatment appears in FNA Volume 5. Treatment on page 532. Mentioned on page 489, 491.

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.

Distribution

Introduced; s Europe, sw Asia, n Africa, 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).

Selected References

None.