Northern Prickly Ash

zanthoxylum americanum

The Northern Prickly Ash (Zanthoxylum americanum) is a fascinating, aromatic shrub native to North America. Despite its common name and ash-like pinnate leaves, it is not a true ash at all, but rather a member of the citrus family (Rutaceae). This understory specialist is historically famous for its medicinal qualities, particularly its ability to alleviate toothaches. When any part of the plant—especially the bark or leaves—is chewed, it releases active chemical compounds that induce a powerful tingling and numbing sensation in the mouth.

Lebensraum: Typically found in moist or rocky open woodlands, forest edges, thickets, and along riparian corridors.

Aussehen

This deciduous shrub typically grows between 150 to 500 centimeters tall, forming dense, multi-stemmed thickets. Its most defining physical features are the sharp, dark-brown prickles paired at the bases of its pinnate compound leaves, which consist of 5 to 11 ovate leaflets. In spring, before the leaves fully expand, it produces small, inconspicuous yellow-green flowers. By late summer, these develop into small, clustered, bumpy reddish-brown seed capsules that split open to reveal shiny black seeds, all while emitting a strong, citrusy aroma when crushed.

ReichPlantaeStammTracheophytaKlasseMagnoliopsidaOrdnungSapindalesFamilieRutaceaeGattungZanthoxylum

Northern Prickly Ash

Kategorie

Pflanzen

Seltenheit

Common

Gefahr

1/5 · Sehr gering

Snaps

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Interessante Fakten

Because it belongs to the citrus family (Rutaceae), its leaves contain oil glands that emit a fragrant, lemon-like scent when bruised.

Native Americans and early European pioneers chewed the bark of this plant to relieve severe toothaches, leading to its famous nickname, the 'Toothache Tree'.

While most mammalian browsers avoid it due to the sharp prickles and numbing chemicals, it is highly sought after by specialized lepidopteran larvae.

Besondere Fähigkeiten

Produces secondary metabolites like herculin in its bark and leaves, which numb oral tissues to deter mammalian herbivores.

Glands on the leaves secrete highly aromatic essential oils that repel destructive pests while attracting specific pollinators.

Possesses sharp, flat-based thorns along its twigs and petioles that physical protect the shrub from larger browsers.

Maße und Details

Länge: 150-500 cm
Lebenserwartung: 15-50 Jahre

Ernährung und Fütterung

As a photosynthetic plant, it manufactures its own sugars using sunlight, water, and carbon dioxide, while absorbing minerals through its root system.

Hauptnahrung

Sunlight
Water
Carbon dioxide
Soil nutrients

Nahrungssuche

Photosynthesis

Ökologische Zusammenhänge

host plant

Giant Swallowtail

Papilio cresphontes

Serves as a vital host plant for caterpillars of Canada's largest butterfly.

mutualism

Honey Bee

Apis mellifera

Feeds on the small yellow-green spring flowers to harvest nectar.

eaten by

American Robin

Turdus migratorius

Consumes the ripe red berries in late autumn and disperses the seeds.

Merkmale

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Auch bekannt als

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Sammlungen

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Sicherheit

Gefahr

1/5 · Sehr gering

Noch keine besonderen Sicherheitshinweise.

Häufig gestellte Fragen

Wie identifiziert man Northern Prickly Ash?

Der einfachste Weg, Northern Prickly Ash zu bestimmen, ist die Verwendung der Naturführer-App Snappit.

Was ist der/die/das länge von Northern Prickly Ash?

150-500 cm

Was ist der/die/das lebenserwartung von Northern Prickly Ash?

15-50 Jahre

Was frisst Northern Prickly Ash?

As a photosynthetic plant, it manufactures its own sugars using sunlight, water, and carbon dioxide, while absorbing minerals through its root system.

Wo findet man Northern Prickly Ash normalerweise?

Typically found in moist or rocky open woodlands, forest edges, thickets, and along riparian corridors.

Wie jagt Northern Prickly Ash?

Photosynthesis