Lasthenia chrysantha

Taxobox
name = "Lasthenia chrysantha"


image_width = 240px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
subclassis = Asteridae
unranked_ordo = Euasterids II
ordo = Asterales
familia = Asteraceae
tribus = Heliantheae
genus = "Lasthenia"
species = "L. chrysantha"
binomial = "Lasthenia chrysantha"
binomial_authority = (Greene ex Gray) Greene
synonyms = "Crockeria chrysantha"

"Lasthenia chrysantha" is a species of flowering plant in the daisy family known by the common name alkalisink goldfields. It is endemic to the California Central Valley, where it grows in vernal pools and alkali flats. This is an annual herb approaching a maximum height near 28 centimeters. The stem may be branched or not and it bears mostly hairless, linear leaves up to 7 or 8 centimeters long. Atop the hairy to hairless stems are inflorescences of flower heads with hairless phyllaries. The head contains many yellow disc florets with a fringe of small yellow ray florets. The fruit is a black oval-shaped achene a few millimeters long with a fringe of tiny dull hairs around the edge. Like other goldfields, populations of this species bloom in the spring to produce a carpet of yellow in its habitat.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,1483,1486 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=LACH2 USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Lasthenia+chrysantha Photo gallery]