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Cycas revoluta

Common Name(s):

Phonetic Spelling
SY-kas reh-vol-OO-tah
This plant has medium severity poison characteristics.
See below
Description

An evergreen, palm-like plant.  The leaves are 1-pinnately divided, glossy green, the leaflets narrow with a sunken midrib and the margins rolled downward.  The pollen cone is large and erect.  The seeds hang on loosely arranged leaves around the stem, each seed large, plum-like, and a pale yellow-tan.  Moderately salt tolerant.

Found in:  Houseplant or interiorscape; landscape as cultivated perennial in warm, coastal areas, as container plant in cool areas

Quick ID Hints:

  • Stiff, pinnate leaves; petiole tomentose at base
  • Pinnae held at 45-60 degree angle to rachis
  • Leaflets have prominent mid veins

Tropical gymnosperm to 11.5', stiff and palm-like. 

Very slow-growing; used as specimen plant. 

Prefers medium light, slightly moist soil and low relative humidity; pest problems

Cultivars / Varieties:
Tags:
#tolerant#poisonous#salt tolerant#fantz
 
Cultivars / Varieties:
Tags:
#tolerant#poisonous#salt tolerant#fantz
  • Attributes:
    Genus:
    Cycas
    Species:
    revoluta
    Family:
    Cycadaceae
    Country Or Region Of Origin:
    Japan (Kyushu) to Nansei-shoto
    Edibility:
    Pith contains an edible starch that can be processed into flour
  • Whole Plant Traits:
    Plant Type:
    Poisonous
  • Fruit:
    Fruit Color:
    Cream/Tan
    Gold/Yellow
    Fruit Description:
    Seeds on loosely arranged leaves around the stem, each seed large, plum-like, pale yellow-tan
  • Flowers:
    Flower Color:
    Insignificant
    Flower Description:
    No flowers; pollen cone is large and erect
  • Leaves:
    Leaf Color:
    Green
    Leaf Feel:
    Glossy
    Leaf Type:
    Compound (Pinnately , Bipinnately, Palmately)
    Leaf Shape:
    Lanceolate
    Linear
    Hairs Present:
    No
    Leaf Description:
    1-pinnately divided, glossy green, the leaflets narrow with a sunken midrib and the margins rolled downward. Pinnate, in terminal whorls, stiff and glossy, to 5'; pinnae linear-lanceolate, semi-rigid, held densely in 45-60 degree angle to rachis, incurved, revolute, shining dark green above, paler and minutely pubescent beneath; midvein sunken, yellow-green; petiole tomentose at base.
  • Stem:
    Stem Is Aromatic:
    No
    Stem Description:
    Usually unbranched, scarred by leaf bases.
  • Landscape:
    Landscape Location:
    Coastal
    Container
    Houseplants
    Resistance To Challenges:
    Salt
    Problems:
    Poisonous to Humans
    Problem for Cats
    Problem for Dogs
    Problem for Horses
  • Poisonous to Humans:
    Poison Severity:
    Medium
    Poison Symptoms:
    TOXIC ONLY IF LARGE QUANTITIES EATEN. Vomiting, diarrhea, headache, dizziness, seizures. Attractive to pets who can also be poisoned.
    Poison Toxic Principle:
    Glycosides and an amino acid BMAA
    Causes Contact Dermatitis:
    No
    Poison Part:
    Leaves
    Seeds