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Rheum rhabarbarum

Common Name(s):

Phonetic Spelling
REE-um ra-BAR-buh-rum
This plant has medium severity poison characteristics.
See below
Description

Perennial herb; leaves in basal clumps, large, with thick, reddish petiole, and large, heart-shaped, blades; flowers small, in a dense, elongated, terminal cluster; fruit 3-winged, reddish.

Found in:  Houseplant or interiorscape; landscape in vegetable gardens or as herbaceous ornamental

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#edible plant#large leaves#red stems#problem for cats#problem for dogs#problem for horses
 
Cultivars / Varieties:
Tags:
#edible plant#large leaves#red stems#problem for cats#problem for dogs#problem for horses
  • Attributes:
    Genus:
    Rheum
    Species:
    rhabarbarum
    Family:
    Polygonaceae
    Life Cycle:
    Perennial
    Country Or Region Of Origin:
    Asia
    Edibility:
    Cooked leaf stalks (petioles) in pies and puree
  • Whole Plant Traits:
    Plant Type:
    Edible
    Perennial
    Poisonous
  • Fruit:
    Fruit Color:
    Red/Burgundy
    Fruit Description:
    Angular 3-winged, reddish containing one seed.
  • Flowers:
    Flower Color:
    Green
    White
  • Leaves:
    Leaf Color:
    Green
    Red/Burgundy
    Leaf Value To Gardener:
    Edible
    Hairs Present:
    No
    Leaf Length:
    > 6 inches
    Leaf Width:
    > 6 inches
    Leaf Description:
    Large green leaves up to 2 feet across. Red petioles which are fleshy and edible when cooked.
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Theme:
    Edible Garden
    Problems:
    Problem for Cats
    Problem for Dogs
    Problem for Horses
  • Poisonous to Humans:
    Poison Severity:
    Medium
    Poison Symptoms:
    TOXIC ONLY IF LARGE QUANTITIES EATEN. Abdominal cramps, burning of mouth and throat, headache, weakness, nausea and vomiting, coma; may be fatal Kidney failure (in grazing animals), salivation in dogs/cats. Most toxic parts are leaves and roots.
    Poison Toxic Principle:
    Anthraquinone glycosides and soluble oxalates, also possibly calcium oxylate crystals
    Causes Contact Dermatitis:
    No
    Poison Part:
    Leaves
    Roots