Rheum ×rhabarbarum L.
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Details
Rheum ×rhabarbarum L., Sp. Pl. 372 (1753)
Rheum ×rhabarbarum L.
Nomenclature
L.
L.
1753
372
ICN
Rheum ×rhabarbarum L.
species
Rheum ×rhabarbarum
Classification
Vernacular names
Synonyms
Descriptions
Rheum ×rhabarbarum L.
Glabrous herb. Lvs mostly radical, arising from thick woody rhizomes. Petiole to c. 60 × 3 cm, flattened above and with raised margins, ± crimson, especially towards base; ochreae to c. 8 cm long, brown, scarious. Lamina to c. 50 × 40 cm (larger in cultivation); main veins 7, prominently raised below; margins ± undulate. Infl. to c. 1.5 m tall; main stem massive and hollow; lateral branches numerous. Bracts minute. Fls greenish white; pedicels filiform, jointed, commonly c. 5 mm long. Inner 3 perianth segments 2.5-3 mm long, elliptic to suborbicular; outer 3 segments smaller. Stigmas large, irregular in outline. Fr. to c. 1 cm long; wings broad, reddish.
Taxonomic concepts
Collections
Notes
editorial
parentage unknown; different to Rheum rhabarbarum auct. (= R. undulatum L.)
Metadata
fc9271b6-ef45-4e87-b55f-aa9bd398ff1b
scientific name
Names_Plants
1 January 2000
27 June 2022