Helianthus gracilentus

Taxobox
name = "Helianthus gracilentus"

---

image_width = 230px
regnum = Plantae
division = Magnoliophyta
classis = Magnoliopsida
ordo = Asterales
familia = Asteraceae
genus = "Helianthus"
species = "H. gracilentus"
binomial = "Helianthus gracilentus"
binomial_authority = Gray

"Helianthus gracilentus" is a species of sunflower known by the common name slender sunflower. It is native to central and southern California and Baja California, where it is a member of the dry wildfire-prone chaparral ecosystem. This is a perennial herb growing from a thick taproot to heights anywhere between one half and two meters. The lance-shaped, pointed leaves are smooth-edged or slightly toothed and up to about 11 centimeters long. The long, slender stems and foliage are covered in rough hairs. The inflorescence bears flower heads with an array of short, hairy phyllaries behind a thick center of yellow to red-brown disc florets. The golden ray florets around the edge are one to three centimeters long.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,1308,1314 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=HEGR3 USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Helianthus+gracilentus Photo gallery]