big bluestem (Andropogon gerardii)
- This is part of Season Spotting
- When to observe: Year-round
- What to observe: Flowers, Fruits, and Leaves
New growth of the plant is visible, either as new green shoots sprouting from nodes on existing stems, or new green shoots breaking through the soil surface. For each shoot, growth is considered "initial" until the first leaf has unfolded.
One or more live unfolded leaves are visible on the plant. A leaf is considered "unfolded" when it unrolls slightly from around the stem and begins to fall away at an angle. Do not include dried or dead leaves.
One or more fresh flower heads (inflorescences) are visible on the plant. Flower heads, which include many small flowers arranged on spikelets, emerge from inside the stem and gradually grow taller. Do not include heads whose flowers have already opened and have all wilted or dried.
One or more open fresh flowers are visible on the plant. A flower is considered "open" when reproductive parts (male anthers or female stigmata) can be seen protruding from the spikelet. Do not include flowers with wilted or dried reproductive parts that remain on the plant.
One or more flowers on the plant release pollen when gently shaken or blown.
One or more fresh fruits are visible on the plant.
One or more ripe fruits are visible on the plant.
|Recent fruit drop
One or more fresh mature fruits or seeds have dropped or been removed from the plant since your last visit. Do not include obviously immature fruits that have dropped before ripening, such as in a heavy rain or wind.