A strobilus (plural: strobili) is a structure present on many land
plant species consisting of
sporangia-bearing structures densely aggregated along a stem. Strobili are often called cones, but some botanists restrict the use of the term cone to the woody seed strobili of conifers. Strobili are characterized by a central axis (anatomically a
stem
Stem or STEM may refer to:
Plant structures
* Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang
* Stipe (botany), a stalk to support some other structure
* Stipe (mycology), the stem of a mushro ...
) surrounded by spirally arranged or
decussate structures that may be modified leaves or
modified stems.
Leaves that bear sporangia are called ''
sporophylls'', while sporangia-bearing stems are called ''