| Ambrosia cordifolia | |
|---|---|
Scientific classification
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Ambrosia |
| Species: | A. cordifolia
|
| Binomial name | |
| Ambrosia cordifolia | |
| Synonyms [1] [2] | |
| |
Ambrosia cordifolia, called the Tucson bur ragweed, [3] is a North American species of plant in the family Asteraceae. It is native to northern Mexico ( Sonora, Sinaloa, San Luis Potosí, Guanajuato, Baja California Sur) and the State of Arizona in the United States. [4] [5] [6]
Ambrosia cordifolia is a shrub up to 50 cm (20 inches) tall. Leaves are triangular or heart-shaped. Flower heads are small and inconspicuous, as the plant is wind-pollinated. The heads develop into spiny burs as the seeds ripen. [7]
The reference to the Arizona city of Tucson in the common name refers to the species' first discovery by Cyrus G. Pringle in the mountains near Tucson in 1884. [8]
References
- ^ Tropicos, Ambrosia cordifolia (A. Gray) W.W. Payne
- ^ The Plant List Ambrosia cordifolia (A.Gray) W.W.Payne
- ^ Southeastern Arizona Wildflowers and Plants, Ambrosia cordifolia – Tucson Bur Ragweed
- ^ Biota of North America Program 2014 county distribution map
- ^ Tropicos, specimen listing for Ambrosia cordifolia (A. Gray) W.W. Payne
- ^ Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 421
- ^ Flora of North America, Vol. 21 Page 14 Ambrosia cordifolia (A. Gray) W. W. Payne
- ^ Gray, Asa 1884. Synoptical Flora of North America 1(2): 445 as Franseria cordifolia
External links
- Pollen Library, Tucson Burr-Ragweed (Ambrosia cordifolia)
- Cabeza Prieta Natural History Association, Sonoran Desert Plants, Ambrosia cordifolia (Heart-leaf Bur-sage)
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