Rumex mexicanus
Rumex floridanus
Mexican dock, Mexican willow, Mexican willow or dock
Florida dock
erect or ascending, usually producing axillary shoots below 1st-order inflorescence or at proximal nodes, 30–60(–90) cm.
erect, rarely ascending, especially axillary shoots, usually producing axillary shoots below 1st-order inflorescence, or at proximal nodes, 40–80(–120) cm.
blades light green to yellowish green, linear-lanceolate, occasionally lanceolate, 6–14 × 1–3.5(–4) cm, usually ca. 5–7 times as long as wide, widest near middle, thin, not coriaceous, base cuneate, margins entire, flat or undulate, apex acute or attenuate.
blades with lateral veins forming angle of 40–60° with midvein, lanceolate or broadly lanceolate, rarely ovate-lanceolate, 7–20(–30) × 3–5 cm, usually 3–5(–6) times as long as wide, normally rather fleshy, coriaceous or subcoriaceous when dry, base narrowly to broadly cuneate, margins entire, flat, apex acute or acuminate.
terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense or interrupted in proximal 1/2, usually broadly paniculate (branches simple or with few 2d-order branches).
terminal and axillary, terminal usually occupying distal 1/3–1/2 of stem, usually rather dense, interrupted only near base, narrowly to broadly paniculate.
articulated in proximal 1/3 or almost near base, filiform (thickened distally), 4–7 mm, not more than 2–2.5 times as long as inner tepals, articulation indistinctly swollen.
articulated in proximal part, distinctly thickened distally, 7–15 mm, usually 2.5–3 times as long as inner tepals, articulation distinctly swollen.
10–20 in whorls;
inner tepals broadly ovate-triangular, occasionally broadly triangular, 3.5–4.5(–5) × 3.5–4(–5) mm, base truncate or indistinctly cordate, margins entire or indistinctly erose, apex obtuse or subacute;
tubercles 3, equal or subequal (much narrower than inner tepals).
10–20(–30) in whorls;
inner tepals, broadly ovate-deltoid or deltoid, (3.5–)4–5.5 × 4–6 mm, usually as wide as or wider than long, base truncate, margins entire or, rarely, very indistinctly erose, apex acute or acuminate;
tubercles 3, equal or subequal, often verrucose and/or transversely rugose (wrinkled) in proximal part.
brown or dark reddish brown, 2–3 × 1.5–2 mm.
brown or dark brown, 2.5–3.5 × 2–3 mm.
= 40.
= 60.
Rumex mexicanus
Rumex floridanus
Some authors recognize Rumex mexicanus in the broad sense, including in it many other taxa treated here as separate entities. For consistency, the entities of the R. salicifolius aggregate that are recognized herein are kept separate pending additional taxonomic research.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Rumex floridanus is closely related to and sometimes treated as a subspecies of R. verticillatus. Distribution of R. floridanus is not known sufficiently because of frequent confusion with R. verticillatus. Moreover, the name was partly misapplied by W. D. Trelease (1892) to R. chrysocarpus.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
LA Plants
