Guardiola
Encyclopedia
Guardiola is a genus of plants in the family Asteraceae
which are native to Mexico
and the southwestern United States
. Members of the genus are subshrub
s with simple, opposite
leaves and terminal inflorescence
s.
Originally placed in the subtribe Melampodiinae, the genus was placed in its own subtribe, Guardiolinae, by Harold Robinson in 1978.
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
which are native to Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
and the southwestern United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. Members of the genus are subshrub
Subshrub
A subshrub or dwarf shrub is a short woody plant. Prostrate shrub is a similar term.It is distinguished from a shrub by its ground-hugging stems and lower height, with overwintering perennial woody growth typically less than 10–20 cm tall, or by being only weakly woody and/or persisting...
s with simple, opposite
Phyllotaxis
In botany, phyllotaxis or phyllotaxy is the arrangement of leaves on a plant stem .- Pattern structure :...
leaves and terminal inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
s.
Originally placed in the subtribe Melampodiinae, the genus was placed in its own subtribe, Guardiolinae, by Harold Robinson in 1978.