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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