SafePlants

Acaciella angustissima: The Prairie Acacia

Acaciella angustissima, commonly known as Prairie Acacia, White Ball Acacia, or Ocpatl (Palo de Pulque), is a perennial deciduous shrub or tree prized for its drought tolerance and ecological benefits.

Considerations for Pets

• The plant has feathery foliage which can attract animals.
• As a legume, it produces seed pods.

Considerations for Children

• The plant has feathery foliage which can attract kids.
• As a legume, it produces seed pods.

Taxonomy and Nomenclature

• Scientific Name: Acaciella angustissima
• Common Names: Prairie Acacia, White Ball Acacia, Fern Acacia, Texas Acacia, Prairie Wattle, Ocpatl, Palo de Pulque.
• Family: Fabaceae (Pea family) / Mimosaceae
• Synonyms: Acacia angustissima, Acaciella hirta, Acacia angustissima (P. Mill.) O. Ktze. var. hirta (Nutt.) Robins.

Distribution and Habitat

• Native to Central America and the United States (including South Texas, Presidio County Texas, and California)
• Grows in a variety of soil types, including heavy clays and red sandy soils.

Morphological Characteristics and Growth Habits

• A rounded sub-shrub or shrub, sometimes a small tree, typically growing to 1-4 feet in height.
• Features feathery, deciduous foliage.
• Produces globe-shaped flower heads, approximately 1/2 inch in diameter, with white flowers sometimes tinged pink or lavender, and yellow stamens.
• Known for rapid growth from seed and re-sprouting after being cut back.

Ecological Role

• A nitrogen fixer, beneficial for soil improvement.
• Provides wind protection and shade.
• In its native habitat, it is eaten by the larvae of the acacia.

Quirky Facts

• The plant's drought tolerance makes it "foolproof" and easy to grow in various soil types.

Further Information

• Encyclopedia of Life
• Discover Life
• Dave's Garden