Cycads (Cycadaceae)



Sago Palm, Fern Palm
______Sago-PalmSago Palm


Cycads have a cylindrical trunk which usually does not branch. Leaves grow directly from the trunk, and typically fall when older, leaving a crown of leaves at the top. The leaves grow in a rosette form, with new foliage emerging from the top and center of the crown. The trunk may be buried, so the leaves appear to be emerging from the ground, so the plant appears to be a basal rosette. The leaves are generally large in proportion to the trunk size, and sometimes even larger than the trunk.

The leaves are pinnate (in the form of bird feathers, pinnae), with a central leaf stalk from which parallel “ribs” emerge from each side of the stalk, perpendicular to it. The leaves are typically either compound (the leaf stalk has leaflets emerging from it as “ribs”), or have edges (margins) so deeply cut (incised) so as to appear compound. Some species have leaves that are bipinnate, which means the leaflets each have their own sub-leaflets, growing in the same form on the leaflet as the leaflets grow on the stalk of the leaf (self-similar geometry).

The three families can be identified by looking at the central stalk of the leaf. Each family has at least one vein running up the leaf stalk from bottom to top (longitudinal). The Cycadaceae have only one vein in the center of the leaf stalk (central vein), but no veins on the stalk-lets of the leaflet (no lateral veins). The Stangeriaceae have only one central vein, but with lateral veins, also. The Zamiaceae have more than one central vein, and they are parallel to each other.


Sago-Plam-New-LeavesSago Palm with new leaves
Tansy is a flowering plant of the aster family it is perennial and herbaceous, native to temperate Europe and Asia. It has been introduced to other parts of the world and in some areas has become invasive.
New Cycad Seeds
Toxic Principle:
Cycasin, B-methylamino-l-alanine, unidentified neurotoxin (cattle)
Poisoning Symptoms include:
Vomiting (may be bloody), dark stools, jaundice, increased thirst, bloody diarrhea, bruising, liver failure, death.
1-2 seeds can be fatal.Cycasin: Vomiting, melena, icterus, increased thirst, hemorrhagic gastroenteritis, bruising, coagulopathy, liver damage, liver failure, death.


 Lone Star English Setter Club provides this information
as a partial reference of the potential poisons that could harm your dog.
We are not veterinarian’s and DO NOT provide medical help.

If you think that your animal is ill or may have ingested a poisonous substance,
contact your local veterinarian or
the ASPCA’s 24-hour emergency poisoning hotline directly