Home
Advanced Search Map Locator
View Settings
Nurseries Carrying this Plant Add Current Plant To List Edit Current Plant
Show all Photos

About Calscape Nurseries
California Garden Planner Bay Area Garden Planner (NEW) Planting Guide
Butterflies My Plant Lists
Contact Calscape
Tap map to see plants native to location
Order by Popularity Order by Common Name Order by Scientific Name Order by # of Butterflies Hosted
Show nursery cultivars Hide nursery cultivars
Show plants not in nurseries Hide plants not in nurseries
Grid view Text view
Loading....
Seashore Blue Grass
Poa macrantha
  
About Seashore Blue Grass (Poa macrantha) 0 Nurseries Carry This Plant Poa macrantha is a species of grass known by the common names seashore bluegrass and large-flowered sand dune bluegrass. It is native to the west coast of North America from Alaska to northern California, where it grows in sand dunes and other beach habitat. Poa macrantha is a perennial grass growing in loose clumps with stems up to 60 centimeters in maximum height. The grass grows from a network of very long, stout rhizomes and stolons which may be up to 4 meters in length, anchoring the grass in its shifting sandy substrate. The inflorescence is a dense series of clustered spikelets which are flattened and longer than wide. The plant is dioecious with male and female individuals bearing different types of flowers; the two flower types are similar in appearance.
Plant Description
Plant Type
Plant Type
Grasses

Size
Size
0.4 - 2 ft tall

Form
Form
Upright

Growth Rate
Growth Rate
Slow

Flower Color
Flower Color
Yellow

Flowering Season
Flowering Season
Winter

Wildlife Supported
 


 
Butterflies & moths hosted ( 9 likely * ) SHOW ALL

Landscaping Information
Soil Description
Soil Description
Prefers sandy or loamy soils. Does not grow well in clay soils.

Natural Setting
Climate
Climate
Annual Precipitation: 38.7" - 75.0", Summer Precipitation: 0.68" - 2.28", Coldest Month: 29.8" - 47.8", Hottest Month: 50.9" - 66.5", Humidity: 0.08" - 15.47", Elevation: 4" - 7745"

Alternative Names
Common Names: Large-flowered Sand Dune Bluegrass, Seashore Bluegrass


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


Sign in to your Calscape Account X




Once signed in, you'll be able to access any previously saved plant lists or create new ones.

Email Address
Password

Sign In