Woolly Meadowfoam

limnanthes pumila

The Woolly Meadowfoam (Limnanthes pumila) is a delicate, low-growing annual wildflower endemic to the unique, seasonally wet vernal pools and volcanic tablelands of Southern Oregon. This fascinating plant has evolved to thrive in an extreme, boom-or-bust ecosystem where soils are completely submerged during winter rains and baked bone-dry by the summer sun. Its survival hinges on a rapid spring lifecycle, transforming muddy pools into beautiful rings of white blooms before disappearing into dormancy as a seed.

Lebensraum: Typically found in the ephemeral vernal pools and wet depressions of volcanic mounded prairies and tablelands.

Aussehen

This tiny herb rarely exceeds 10 centimeters in height. It is easily identified by its cup-shaped white flowers, which feature five petals with yellow bases, creating a delicate glowing center. True to its name, the calyx (the outer green sepals supporting the petals) is densely covered in fine, woolly white hairs. The leaves are deeply lobed and succulent, arranged in a low basal rosette that hugs the muddy ground.

ReichPlantaeStammTracheophytaKlasseMagnoliopsidaOrdnungBrassicalesFamilieLimnanthaceaeGattungLimnanthes

Woolly Meadowfoam

Kategorie

Pflanzen

Seltenheit

Common

Gefahr

1/5 · Sehr gering

Snaps

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Interessante Fakten

It is a strict endemic, meaning it is found naturally in only one small region on Earth—specifically around the Table Rocks of Southern Oregon.

Its seeds possess a durable dormancy mechanism that allows them to survive the baking summer heat of dry clay basins.

The dense 'woolly' hairs on its sepals help protect the developing flower buds from late-season frosts and retain moisture.

Besondere Fähigkeiten

It successfully completes its entire life cycle within a short window, germinating underwater and flowering just as the pool dries.

The dense hairs on its sepals insulate the developing flower buds from frost during cold spring mornings and reduce water loss.

Its seeds enter a deep summer dormancy, allowing them to survive baking clay temperatures exceeding 40 degrees Celsius.

Maße und Details

Länge: 2-10 cm
Gewicht: 0.001-0.01 kg
Lebenserwartung: 1 Jahre

Ernährung und Fütterung

As a photoautotrophic plant, it produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing mineral nutrients from the shallow vernal pool soils.

Hauptnahrung

Sunlight
Water
Carbon dioxide
Soil nutrients

Ökologische Zusammenhänge

mutualism

Meadowfoam Bee

Andrena limnanthis

Specialist solitary bees visit the flowers for nectar and pollen, acting as primary pollinators.

competitor

Medusahead Wildrye

Taeniatherum caput-medusae

Invasive annual grasses compete heavily for space, water, and nutrients in its fragile vernal pool habitat.

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Sicherheit

Gefahr

1/5 · Sehr gering

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Häufig gestellte Fragen

Wie identifiziert man Woolly Meadowfoam?

Der einfachste Weg, Woolly Meadowfoam zu bestimmen, ist die Verwendung der Naturführer-App Snappit.

Was ist der/die/das länge von Woolly Meadowfoam?

2-10 cm

Was ist der/die/das gewicht von Woolly Meadowfoam?

0.001-0.01 kg

Was ist der/die/das lebenserwartung von Woolly Meadowfoam?

1 Jahre

Was frisst Woolly Meadowfoam?

As a photoautotrophic plant, it produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing mineral nutrients from the shallow vernal pool soils.

Wo findet man Woolly Meadowfoam normalerweise?

Typically found in the ephemeral vernal pools and wet depressions of volcanic mounded prairies and tablelands.