Pitcher Plants GENUS
Sarracenia
Sarracenia flava
This is a tall pitcher plant with leaves often reaching 100
cm or more. The common names for this species include yellow trumpet and
huntsman's horn. The plants are found in the western Florida panhandle, southern
Georgia, all the way northward to South Carolina and North Carolina. Flowering
season varies depending on locale, starting in as early as mid_March in Florida
and May in North Carolina. S. flava exhibits a wide infraspecific variation. The
picture below shows S. flava var. rugelii growing in the Florida panhandle. This
variety is characterized by a deep, maroon color of the pitcher throat.
When the trigger hairs on the inner surface
of the trap lobes are stimulated, the clam-shell-shaped trap closes suddenly ---
often in less than a half second --- fast enough to capture such agile insects
as a fly quite comfortably. Intermeshing marginal spines effectively prevent the
prey's escape. After the initial rapid closure, the insect's struggle inside the
trap further stimulates the trigger hairs, causing the trap lobes to close even
more tightly. In a day or so, the trap is seen tightly sealed around the
free margins of the lobes, with the marginal spines pointing outwardly. The
digestive fluids start to ooze into the now sealed trap cavity. As the digestive
process progresses, the products of dige
ermeshing marginal spines effectively prevent
the prey's escape. After the initial rapid closure, the insect's struggle inside
the trap further stimulates the trigger hairs, causing the trap lobes to close
even more tightly. In a day or so, the trap is seen tightly sealed around
the free margins of the lobes, with the marginal spines pointing outwardly. The
digestive fluids start to ooze into the now sealed trap cavity. As the digestive
p
Introduction
Venus Flytrap
Sundews
Pitcher Plants
Cobra Plant
Butterworts
Bladderworts
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