SafePlants

Dictamnus: The Intriguing Gas Plant

The genus Dictamnus, belonging to the Rutaceae family, features the well-known species Dictamnus albus. This plant carries a unique charm and several common names that hint at its distinctive properties.

Common Names

• Gas Plant
• Burning Bush (Note: This name is also used for Euonymus, so be sure to distinguish between the two.)
• Dittany
• Fraxinella

Taxonomy and Nomenclature

• Scientific Name: Dictamnus albus
• Family: Rutaceae (Citrus Family)
• Synonyms:
  • Dictamnus albus 'Fraxinella'
  • Dictamnus albus 'Rubra'
  • Dictamnus fraxinella (historical)
• Variants:
  • Dictamnus albus var. purpureus

Considerations for Pets

• The plant contains aromatic foliage that may be appealing to some animals.
• Members of the Rutaceae family may contain volatile compounds that could cause irritation.

Considerations for Children

• Historically, this plant was recognized for its ability to emit a flammable vapor.

Distribution and Habitat

• Native to Europe and Asia.
• Specifically mentioned as native to Southwest Europe, South, and Central Asia.
• Introduced in New England, with collections reported in Vermont.

Morphological Characteristics and Growth Habits

• Dictamnus albus is a long-lived perennial shrub.
• It can reach up to 1 meter (3ft 3in) in height and 0.6 meters (2ft) in width.
• The plant forms a bushy, upright clump.
• It features leathery, glossy green leaves arranged in opposing pairs.
• Dictamnus albus var. purpureus has rosy-purple flowers with prominent stamens.

Quirky Facts

• The common name "Gas Plant" originates from the plant's ability to emit a light, volatile gas (likely methane) that can be ignited, particularly during bloom.
• The plant's lemon-scented leaves contribute to its overall appeal and distinctiveness.
• Gas Plant was commonly grown in England in the late 16th century.

Ecological Role

• While generally not considered highly invasive, its introduction to new regions like New England suggests potential for naturalization.

Cultivation

• Easily grown in average, medium, well-drained soils in full sun.
• Prefers evenly moist, fertile, humusy soils that do not become soggy.
• Tolerates drought.
• Slow to establish but very long-lived (up to 50 years).
• Resents transplanting, so choose the initial planting spot carefully.

Interactions with Other Organisms

• The text notes "Medicinal uses, phytochemistry and pharmacology of the genus Dictamnus (Rutaceae)." This suggests the plant may have interactions with organisms in a medicinal or pharmacological setting.

Additional Information

• The text makes reference to a report about the potential of dictamnus to be a contributor to rare but serious cases of liver reaction.