BioGator
University of Florida
Log In
New Account
Sitemap
Home
Search
Search Collections
Map Search
Images
Image Browser
Search Images
Checklists
UF Conservation Areas
UF Main Campus
Interactive Tools
Dynamic Checklist
Dynamic Key
Discover Campus Biodiversity
How to Use BioGator
Other Resources
UF Conservation Area Maps
About BioGator
The BioGator Team
Cotula australis
(Sieber ex Spreng.) Hook. fil.
Family:
Asteraceae
Australian Water-Buttons,
more...
Australian waterbuttons
FNA
Resources
Linda E. Watson in Flora of North America (vol. 19, 20 and 21)
Annuals,
2-10(-25+) cm.
Stems
branched ± throughout, ± strigillose to villous, glabrescent.
Leaves
petiolate or sessile; blades obovate to spatulate, 2-3-pinnately lobed (ultimate lobes narrowly spatulate to linear), (1-)2-3(-6) cm.
Involucres
3-4(-6) mm diam.
Phyllaries
13-22+ in 2-3 series, subequal (apices brown).
Ray florets
0 (peripheral pistillate florets 8-80+ in 1-3+ series; corollas 0).
Disc corollas
ochroleucous to pale yellow, 0.5-0.8 mm.
Cypselae:
outer stalked, 1-1.2 mm, ± winged, faces ± papillate; inner sessile, 0.8-1 mm, not winged, not papillate.
2
n
= 36, 40. Flowering Jan-Sep. Disturbed sites; 0-800 m; introduced; Ariz., Calif., Fla., Maine, Oreg., Tex.; Australia; also introduced in Northern Hemisphere: Mexico (Baja California); South America; Africa.
Click to Display
1 Total Images
This project made possible through support from the UF Planning, Design & Construction and the UF Office of Sustainability
Powered by
Symbiota
.