Rheum rhomboideum Losinsk.

Species

Angiosperms > Caryophyllales > Polygonaceae > Rheum

Characteristics

Herbs dwarf, procumbent. Roots ca. 5 cm in diam. Stem absent. Petiole of basal leaf shorter than blade, subterete, 2-7 cm, papilliferous or glabrous; leaf blade rhombic or rhombic-elliptic, 10-16 × 8.4-14 cm, nearly leathery, abaxially densely papilliferous, adaxially glabrous, basal veins 5, base cuneate or broadly cuneate, margin entire, apex obtuse or obtusely acute. Panicle spiciform; rachis mostly from apex of rhizome, shorter than leaf, 10-15 cm. Tepals purple-red, narrowly oblong-elliptic, 1.5-2 mm. Stamens subequal to perianth. Fruit broadly cuneate, 5.5-12.5 × 5.5-15 mm, base slightly cordate, apex retuse; wings 3-5 mm wide, with longitudinal veins at middle. Seeds ovoid, 3-5 mm wide. Fl. Jun-Jul, fr. Aug-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 21 - 42
Germination temperacture (C°) 15 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Rheum rhomboideum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:696788-1
WFO ID wfo-0001246365
COL ID 4S6C4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rheum rhomboideum