Mount Diablo Manzanita
EntdeckenPflanzen
Mount Diablo Manzanita
arctostaphylos auriculata
The Mount Diablo Manzanita (Arctostaphylos auriculata) is a rare and striking evergreen shrub endemic to the sandstone slopes of Mount Diablo in Contra Costa County, California. Known for its gorgeous, silvery foliage and smooth, mahogany-colored bark, this chaparral specialist is a true botanical treasure of the San Francisco Bay Area. Its unique ear-like leaf bases, which clasp the stems, set it apart from other manzanita species. As an obligate seeder, this resilient plant relies on the natural cycle of wildfire to crack open its hard seeds and initiate new growth. It plays a vital role in its localized ecosystem, providing crucial nectar for native bees and hummingbirds in late winter when few other plants are in bloom.
Lebensraum: Found primarily on dry sandstone ridges and chaparral slopes in the microclimate of the Mount Diablo region.
Aussehen
This erect shrub typically grows between 100 to 450 centimeters tall, featuring heavily branched structures covered in fine, white-velvety hairs when young, which mature into smooth, dark reddish-brown bark. The most distinguishing feature is its leaves: they are pale gray-green, ovate, densely hairy on both sides, and uniquely overlap or clasp the stem with ear-like lobes at the base. Clusters of small, urn-shaped flowers in shades of white to pale pink bloom in winter, followed by round, sticky, hairy dark red berries.
ReichPlantaeStammTracheophytaKlasseMagnoliopsidaOrdnungEricalesFamilieEricaceaeGattungArctostaphylos
Kategorie
PflanzenSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
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Interessante Fakten
Because it lacks a basal burl, this manzanita cannot resprout from its roots after a fire; instead, its entire population regenerates purely from seed.
It is highly localized, found almost exclusively on the sandstone soils of Mount Diablo and nowhere else in the world.
The scientific species name 'auriculata' translates to 'eared' in Latin, referring directly to the ear-shaped lobes at the base of its leaves.
Besondere Fähigkeiten
Fähigkeit
Fire-Triggered Germination
Its seeds have a tough coating that remains dormant in the soil for decades, germinating only after fire opens them.
Fähigkeit
Ear-Like Leaf Basal Lobes
The overlapping leaf bases clasp the stems tightly, which may help direct condensation down the branches toward the root system.
Fähigkeit
Woolly Moisture Defense
Dense, soft white hairs covering its leaves and young twigs act as a natural shield to reduce moisture loss.
Maße und Details
- Länge
- 100-450 cm
- Lebenserwartung
- 20-100 Jahre
Ernährung und Fütterung
As a photoautotrophic plant, it synthesizes its own food using sunlight, carbon dioxide, water, and soil nutrients through photosynthesis.
Hauptnahrung
- Sunlight
- Carbon dioxide
- Water
- Soil minerals
Ökologische Zusammenhänge
mutualism
Vosnesensky Bumble Bee
Bombus vosnesenskii
Feeds on the early winter nectar and serves as a key pollinator for the shrub.
mutualism
Anna's Hummingbird
Calypte anna
Feeds on the winter-blooming flowers' nectar and assists in pollination.
eaten by
Black-tailed Jackrabbit
Lepus californicus
Consumes the fallen berries and potentially aids in seed dispersal.
Merkmale
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man Mount Diablo Manzanita?
Der einfachste Weg, Mount Diablo Manzanita zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Mount Diablo Manzanita?
100-450 cm
Was ist der/die/das lebenserwartung von Mount Diablo Manzanita?
20-100 Jahre
Was frisst Mount Diablo Manzanita?
As a photoautotrophic plant, it synthesizes its own food using sunlight, carbon dioxide, water, and soil nutrients through photosynthesis.
Wo findet man Mount Diablo Manzanita normalerweise?
Found primarily on dry sandstone ridges and chaparral slopes in the microclimate of the Mount Diablo region.
Snap-Karte
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