Lasthenia burkei

Taxobox
name = "Lasthenia burkei"

---

image_width = 240px
status = EN
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
subclassis = Asteridae
unranked_ordo = Euasterids II
ordo = Asterales
familia = Asteraceae
tribus = Heliantheae
genus = "Lasthenia"
species = "L. burkei"
binomial = "Lasthenia burkei"
binomial_authority = Greene

"Lasthenia burkei" is a rare species of flowering plant in the daisy family known by the common names Burke's goldfields and Burke's baeria. It is endemic to California, where it is known from three counties north of the San Francisco Bay Area. It grows in moist spring meadows and vernal pools. This is an erect annual herb producing hairy stems with sparse linear or deeply divided, narrow, pointed leaves a few centimeters long. Atop the stem is an inflorescence, which is a flower head with a base of hairy phyllaries. The head contains many yellow disc florets surrounded by a fringe of several short ray florets, which are usually also yellow. The fruit is a hairy, club-shaped achene less than 2 millimeters long. This is a listed endangered species on the federal level in the United States and the California state level.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,1483,1484 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=LABU USDA Plants Profile]
* [http://www.centerforplantconservation.org/asp/CPC_ViewProfile.asp?CPCNum=2434 Center for Plant Conservation Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Lasthenia+burkei Photo gallery]