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shrubland beggarticks

Scientific Name: Bidens sandvicensis

Family: Asteraceae

Category: Dicot

Growth: Subshrub, Forb/herb

Duration: Perennial

Other Names:

       

Bidens sandvicensis: Shrubland Beggarticks

Bidens sandvicensis, commonly known as Shrubland Beggarticks, is a perennial subshrub forb/herb belonging to the genus Bidens.

Considerations for Pets

  • The plant is referred to as "beggarticks," "black jack," "burr marigolds," "cobbler's pegs," "Spanish needles," and "stickseeds," suggesting potential for seeds or other plant parts to adhere to fur.

Considerations for Children

  • The plant is referred to as "beggarticks," "black jack," "burr marigolds," "cobbler's pegs," "Spanish needles," and "stickseeds," suggesting potential for seeds or other plant parts to adhere to clothing.

Taxonomy and Nomenclature

  • Scientific Name: Bidens sandvicensis Less.
  • Family: Asteraceae (Sunflower family)
  • Rank: Species
  • Subspecies:
    • Bidens sandvicensis subsp. sandvicensis
    • Bidens sandvicensis ssp. confusa Nagata & Ganders
  • Synonyms/Related Species:
    • Bidens schimperi Sch. Bip.
    • Bidens aurea (Ait.) Sherff

Common Names

  • Shrubland Beggarticks
  • Beggarticks
  • Black Jack
  • Burr Marigolds
  • Cobbler's Pegs
  • Spanish Needles
  • Stickseeds
  • Grassland Beggarticks
  • Kalealaha Beggarticks (B. micrantha subsp. kalealaha)

Distribution and Habitat

  • Endemic to the Hawaiian Islands (Kaua?i and O?ahu).
  • Specifically found on O?ahu.
  • Also found in three disjunct areas on the Big Island: Kohala, Puna, and Kilauea.
  • Prefers dry to moist shrublands on exposed cliffs near the coast.
  • Found in open shrubland and old lava flows.

Morphological Characteristics

  • Type: Subshrub, Forb/herb
  • Duration: Perennial

Ecological Role

  • Several Bidens species, including Nodding Beggarticks (B. cernua) and Hairy Beggarticks (B. pilosa), are useful as honey plants.

Interactions with Other Organisms

  • Smooth Beggarticks (Bidens laevis) are pollinated by dagger flies.
  • Smooth Beggarticks (Bidens laevis) are pollinated by bombyliid flies.

Further Information

  • Discover Life page about the biology, natural history, ecology, identification, and distribution of Bidens sandvicensis.
  • Plant information and gardening tips are available on Garden Guides.
  • Taxonomic information can be found in the British Database of World Flora and Fauna.