Uploaded by iniiiata

Xerophytes: Desert Plant Adaptations

advertisement
What if?
XeRoPhYtE
Cold weather at night : grow close to the ground to
stay survive, go dormant in winter to survive
freezing temperature, spines trap heat and provide
a layer of protection against frost.
Hot weather : store water in thick stems have a deep
long roots to find water
Big wind : grow low and spread out to stay
anchored, have a strong root to hold into the soil
CoLoUr
Plants have a Desert
Sage color due to
trichomes, a waxy
layer, and pigments
that reflect sunlight,
reduce water loss,
and retain moisture,
helping them survive
in hot, dry
environments.
LeAveS
Needle for reduce heat
loss, thick for water
storing, waxy coating can
minimize evaporation,
shedding leaves for
reduce water loss
RoOt
deep roots to reach water
underground, widespread
root to absorb rain quickly,
more root hairs to increase
water absorption
SpEcIaL MoDs
CAM Photosynthesis: Stomata
open at night to reduce water
loss
Drought Dormancy: Some
plants shed leaves or go
dormant in dry seasons.
Water Storage: Succulents
store water in leaves, stems, or
roots.
Rapid Water Absorption:
Extensive root systems quickly
absorb moisture from rain.
GeNeRaL EnViRoNtMeNT
High temprature 45C (113F) with
cooler nights, low rainfall (less than
250mm per-year), high level of UV
radiation and minimal cloud causing
extreme temprature, sandy and rocky
with poor water retention, strong wind
causes the erosion and water loss.
ShApE
It has a rosette shape to store water
and protect its core. Thick leaves with a
waxy coating reduce evaporation, while
sharp tips and serrated edges serve as
defense. Shallow, widespread roots
quickly absorb water. When blooming, a
tall stalk grows to disperse pollen
through wind, bats, or insects, enabling
survival in dry and hot environments.
StEm
rainy = stem expand as they
try to store all the water (for
water storage and
photosynthesis)
dry = stem contact as they
try to keep all the water not
to evaporate
waxy cuticle = reduce
evaporation
FlOwEr
Bright and showy to attract pollinators in harsh
environments
Short blooming period to conserve energy and
water.
Deep roots or water storage to sustain flowering
during drought.
Wind or insect pollination optimized for arid
regions.
In
Flower
Stem
Cactii
Shape
Agave
Night-blooming to avoid
over heat, in the night, it’ll
attracts nocturnal
pollinators for
Queen of The Night
reproduction
It’s thick and tall, so
that the plant can in
stores water and do the
photosynthesizes
It’stall
talllike
like columnar
columnar
It’s
plant
reduce
the
plant
toto
reduce
the
surface
surface
areaarea
for for
photosyntesis
photosyntesis
it’ll reflects sunlight &
conserves moisture
Desert Sage
Leaves
Root
Mesquite Tree
Color
Gray-green or silver so that
e
It’s spine like to reduce
water loss
Deep and lateral roots
to accesses both deep
and surface water
Desert plants survive in hot, dry
places by storing water and having
deep roots, this organism design to
hot climate weather
Special Mods
XEROPHYTE
Thick waxy cuticula to
ensure water storage,
dormancy, and fireresistant.
sig-sag
Download