Grindelia pusilla
Grindelia pusilla, the little gumweed,[2] is a North American species of flowering plants in the daisy family. It is found only in the state of Texas in the south-central United States.[3][4]
| Grindelia pusilla | |
|---|---|
| Scientific 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 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
    
- Tropicos, Grindelia pusilla (Steyerm.) G.L. Nesom
 - USDA, NRCS (n.d.). "Grindelia pusilla". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 18 July 2015.
 - Biota of North America Program 2014 county distribution map
 - 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
 - Flora of North America, Grindelia pusilla (Steyermark) G. L. Nesom, 1992.
 - Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 467
 
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