Rumex subg. Acetosella

(Meisner) Rechinger f.

Publ. Field Mus. Nat. Hist., Bot. Ser. 17: 6. 1937.

Basionym: Rumex sect. Acetosella Meisner in C. F. P. von Martius et al., Fl. Bras. 5(1): 10. 1855
Synonyms: Undefined subg. Acetosella (Meisner) Fourreau
Treatment appears in FNA Volume 5. Treatment on page 497. Mentioned on page 489, 490, 501.

Plants dioecious (rarely polygamomonoecious). Leaf-blades hastate with spreading basal lobes, or sometimes narrowly linear, unlobed, and narrowly cuneate at base. Pedicels filiform, articulation distinct near base of tepals, slightly swollen. Flowers unisexual, staminate and pistillate on different plants; outer tepals angled towards inner tepals; inner tepals not enlarged or slightly to distinctly enlarged, 1.2–2.5 (–3) mm, equaling or slightly wider than achenes, margins entire; tubercles absent.

Distribution

Mostly in temperate regions of both hemispheres, as naturalized almost worldwide

Discussion

Species 7–8 (4 in the flora).

"/2" is not declared as a valid unit of measurement for this property.

... more about "Rumex subg. Acetosella"
unwinged +  and weakly winged +
tan;dark-brown +
pyramidal +, compressed-3-gonous +  and 3-gonous +
yellow +  and brownish yellow +
ovate +  and elongate +
Sergei L. Mosyakin +
(Meisner) Rechinger f. +
not articulated +
stipelike +
Rumex sect. Acetosella +
crisped;undulate;flat;crisped;undulate;flat +
foliaceous +  and perfoliate +
scale-like +
tuberculate +
just below the soil surface or and above the soil surface +  and spreading +
Mostly in temperate regions of both hemispheres +  and as naturalized almost worldwide +
free +  and distinct +
pistillate +  and staminate +
disarticulating +  and solid +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not enlarged or +  and slightly distinctly enlarged +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
slightly wider +
nonmembranous +
cuneate +, unlobed +  and hastate +
deciduous +
cauline +  and basal +
pubescent +  and glabrous +
entire +, orbiculate +  and linear +
smaller +
narrower +
swollen +
partly +  and foliaceous +
deciduous +  and persistent +
cylindric +
membranous +
anatropous +, , +  and orthotropous +
accrescent +
spreading;erect +
red;pinkish;red;pinkish;green +
campanulate +
accrescent +
fleshy +, indurate +  and membranous +
(2-)3(-4)-carpellate +
Publ. Field Mus. Nat. Hist., Bot. Ser. +
love1983a +
slender;stout +
not scapose +
prostrate +, ascending +  and erect +
papillose-pubescent +  and glabrous +
plumose +  and fimbriate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
distinct +
reflexed;spreading +
spreading;erect +
Undefined subg. Acetosella +
Rumex subg. Acetosella +
subgenus +
lobed +  and laciniate +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +
stoloniferous +  and rhizomatous +
annual +, biennial +  and perennial +
10 +, 9 +, 8 +  and 7 +