Ionactis alpina

Taxobox
name = "Ionactis alpina"

---

image_width = 210px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Asterales
familia = Asteraceae
genus = "Ionactis"
species = "I. alpina"
binomial = "Ionactis alpina"
binomial_authority = (Nutt.) Greene
synonyms = "Aster scopulorum"

"Ionactis alpina" (formerly "Aster scopulorum") is a species of aster known by the common name lava aster. It is native to western North America from California to Montana, where it grows in dry areas. This is a perennial herb growing from a caudex and fibrous root system. It produces a short, mostly erect, hairy stem to 12 centimeters in maximum height. Most of the small leaves are on the lower part of the stem. They are up to about a centimeter long, oval to lance-shaped and pointed, somewhat stiff and coated in hairs. The inflorescence bears solitary flower heads with purple-green phyllaries, thin purple ray florets and long yellow disc florets. The fruit is a hairy achene.

External links

* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,751,777 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=IOAL USDA Plants Profile]
* [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Ionactis+alpina Photo gallery]