Plant

Frémont Cottonwood

Populus fremontii

Also known as Fremont's Cottonwood, Alamo Cottonwood, Rio Grande Cottonwood, Alamo

Frémont cottonwoods dominate low-elevation riverbanks and desert wash ecosystems across the American Southwest, where their broad canopies create essential shade and nesting habitat. In spring, female trees release dense clouds of fluffy, seed-bearing down that drift across floodplains to germinate on freshly deposited sandbars. Their triangular, bright green leaves rustle loudly in gentle breezes and turn a brilliant golden yellow each autumn.

RiparianDeciduousTree

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Least ConcernConservation status

Key facts

Diet & preyAutotrophic (Photosynthesis)

Predators

North American Beaver
Mistletoe
Cottonwood Borer

ThreatsWater diversion, damming, groundwater pumping, habitat loss

HabitatsRiparian zones, desert washes, floodplain terraces, riverbanks

Life span100–150 years

Classification

OrderMalpighiales
FamilySalicaceae
GenusPopulus
SpeciesPopulus fremontii

Range & activity

Range data is not available yet.

Safe observation

Interaction riskLow

Low
Moderate
High
Very high

Why interaction risk is low: Safe to observe at a normal distance.
What to notice: Look for massive spreading trees with deeply furrowed grey bark and deltoid leaves growing along dry or active watercourses.
Support conservation: Avoid trampling young saplings near waterlines and refrain from breaking branches or cutting exposed roots.

Responsible observation

Spring Fluff: Female trees shed windborne seeds attached to cottony hairs that can coat nearby ground.
Birding Hotspot: Scan the high canopy in desert valleys for nesting raptors and migrating songbirds.
Autumn Foliage: Visit southwestern river corridors in November to witness brilliant golden leaf changes.

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