Rumex hastatulus
Rumex longifolius
heartwing dock, heartwing sorrel, wild dock, wild sorrel
door-yard dock, long-leaf dock, long-leaf or northern or dooryard dock, rumex a feuilles longues, yard dock
solitary or several from base, erect or ascending, branched in distal 2/3 (in inflorescence), 10–40(–45) cm.
erect, branched distal to middle, 50–120(–160) cm.
blade obovate-oblong, ovate-lanceolate, oblong-lanceolate, or lanceolate; 2–6(–10) × 0.5–2 cm, base hastate (with spreading lobes), auriculate, or occasionally without evident lobes, margins entire, flat, apex obtuse or subacute.
ocrea deciduous or partially persistent at maturity;
blade broadly lanceolate to ovate-lanceolate or oblong-lanceolate, normally 25–50(–60) × 7–15 cm, ca. 3–4 times as long as wide, base broadly cuneate, rounded-truncate, or slightly cordate, margins entire, undulate or weakly crisped, occasionally flat, apex acute or subacute.
terminal, occupying distal 2/3 of stem, usually lax and interrupted, narrowly paniculate.
terminal, occupying distal 1/2 of stem, normally dense, narrowly paniculate, branches usually straight or arcuate.
articulated in proximal part, filiform, 1.5–2.5(–3) mm, articulation indistinct or slightly swollen.
articulated in proximal 1/3, filiform, 4–9 mm, articulation distinctly swollen.
3–6(–8) in whorls;
inner tepals orbiculate or broadly ovate, 2.5–3.2 × 2.7–3.2 mm, base broadly cordate or rounded, apex obtuse or subacute;
tubercles absent or some inner tepals with slightly swollen central veins.
10–20 in whorls;
inner tepals broadly orbiculate or reniform, (4.5–)5–6(–7) × (4.5–)5–7(–7.5) mm, base usually distinctly cordate, margins entire or subentire to very weakly erose, flat, apex obtuse or, rarely, subacute;
tubercles normally absent,sometimes with 1 indistinct tubercle or slightly thickened midvein less than 1–1.3 mm wide.
brown or dark brown, 0.9–1.2 × 0.6–0.8 mm.
dark brown or brown, (2.5–)3–3.5(–4) × 1.5–2 mm.
= 8 (pistillate plants), 9 (staminate plants), 10 (both sexes).
= 60.
Rumex hastatulus
Rumex longifolius
Rumex hastatulus is distinct in subg. Acetosa and belongs to the monotypic subsect. Americanae Á. Löve & N. Sarkar. It is represented by at least two chromosome races: populations occurring from North Carolina to Florida and Mississippi normally have 2n = 8 in pistillate plants and 2n = 9 in staminate plants; populations from Louisiana to Texas and Oklahoma predominantly have 2n = 10 in both sexes. Rumex hastatulus has been reported from New Mexico (W. C. Martin and C. R. Hutchins 1980, vol. 1), but those records need confirmation. When fruiting, R. hastatulus has large inner tepals that distinguish it from R. acetosella, with which it is occasionally confused.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Most records of Rumex longifolius from the Great Plains (Great Plains Flora Association 1977; R. B. Kaul 1986) refer to R. pseudonatronatus (J. E. Dawson 1979), which can be distinguished from R. longifolius by its narrower leaves, smaller and more distinctly triangular inner tepals, and purplish or reddish brown stems at maturity. The two species are closely related; they were placed by K. H. Rechinger (1949) in subsect. Longifolii Rechinger f.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
IL Wildflowers
KS Wildflowers
LA Plants
MD Biodiversity
MO Plants
WildflowerSearch
iNaturalist
USDA Plants Database
BC
Go Botany
MI Flora
MN Wildflowers
PNW Herbaria
