Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Hybrid Knapweed - Centaurea x psammogena
Other Names:  Centaurea varnensis, Centaurea xvarnensis

No photos are currently available
If you have a high quality photo of this species, are confident in the identification, and would like to submit it for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool.


Image Copyright and Usage Information
Non-native Species

Global Rank: GNA
State Rank: SNA
C-value:


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
In areas where Centaurea stoebe ssp. micranthos and Centaurea diffusa co-occur, they readily hybridize (FNA 2006; Parkinson et al. 2011). These fertile hybrids have been named Centaurea xpsammogena G. Gayer. Characteristics of the hybrids are variable, except for the cypselae (fruit) which always bears a pappus and the flower heads are always conspicuously radiant (composed of ray florets). Flowers are purple or white. Bracts have a dark tip similar to C. stoebe and long bristles on the margins similar to C. diffusa.


References
Login Logout

Take us with you! PDF icon

Look for this PDF icon as you search and browse.  Click it to build a custom PDF with species shown on that page or for all the species within that taxonomic level.  To create your own list of species, use the PDF Creator tool at the bottom of the Advanced Search page.

Here's some links if you want to download a whole group.

Mammals
Birds
Reptiles
Amphibians
Fish
Invertebrates
Butterflies / Moths
Dragonflies / Damselflies
Ferns and allies
Conifers
Flowering Plants (Dicots)
Flowering Plants (Monocots)
Bryophytes
Lichens
Ecological Systems
Noxious Weeds
Citation for data on this website:
Hybrid Knapweed — Centaurea x psammogena.  Montana Field Guide.  .  Retrieved on , from