Grindelia pusilla
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Grindelia
Species:
G. pusilla
Binomial name
Grindelia pusilla
Synonyms[1]
  • Grindelia microcephala var. pusilla Steyerm. 1934

Grindelia pusilla, the little gumweed,[2] is a North American species of flowering plants in the family Asteraceae. It is found only in the state of Texas in the south-central United States.[3][4]

Grindelia pusilla grows in open, dry sites, often disturbed. It is an annual herb up to 70 cm (28 in) tall. The plant usually produces numerous flower heads in flat-topped arrays. Each head has 13-27 ray flowers, surrounding a large number of tiny disc flowers.[5][6]

References

  1. Tropicos, Grindelia pusilla (Steyerm.) G.L. Nesom
  2. USDA, NRCS (n.d.). "Grindelia pusilla". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 18 July 2015.
  3. Biota of North America Program 2014 county distribution map
  4. Nesom, G.L. 1990. Studies in the systematics of Mexican and Texan Grindelia (Asteraceae: Astereae. Phytologia 68(4): 303–332 distribution map on page 307
  5. Flora of North America, Grindelia pusilla (Steyermark) G. L. Nesom, 1992.
  6. Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 467


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