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Grindelia x paludosa
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Suisun Gumplant
( Grindelia x paludosa )
Grindelia x paludosa
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Suisun Gumplant (Grindelia x paludosa)
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Suisun Gumplant (
grindelia paludosa
) is a putative stabilized hybrid between
Grindelia camporum
and
Grindelia stricta
var. angustifolia. It is endemic to the Suisun Bay Area, in the Deltaic Great Valley bioregion of California, growing in salt marshes and banks of sloughs. Its flowering time is between July and November.
Some botanists consider
grindelia paludosa
a synonym for
Grindelia hirsutula
, a North American species of flowering plant in the daisy family known by the common names hairy gumplant and hairy gumweed.
Grindelia hirsutula
is native to North America, widespread across Canada and in California and Oregon. The species is highly variable, and many local populations have been named as varieties or as distinct species. All these taxa do, however, intergrade with one another.
Grindelia hirsutula
is an erect perennial herb or subshrub sometimes as much as 250 cm (100 inches or 8 1/3 feet) tall but usually much shorter. The plant is usually green but the stems are often red or purplish-brown and the leaves can be somewhat yellowish to reddish. The plant can produce numerous flower heads in branching arrays at the top of the plant. Each head is 2 or 3 centimeters (0. 8-1. 2 inches) wide with hemispheric cups of greenish phyllaries around the base, the bracts claw-like and bent away from the flowers. The center of the head is filled with many small yellow disc florets surround by numerous golden ray florets. The head produces a thick white exudate, especially in new flower heads.
Varieties:
Grindelia hirsutula
var. maritima - San Francisco Gum Plant, San Francisco gumplant, coastal gumweed; is endemic to the the San Francisco Bay Area in coastal northern California.
Plant Description
Plant Type
Perennial herb
Size
8.2 ft tall
Flower Color
Yellow
Flowering Season
Summer, Fall
Wildlife Supported
Native bees (pollen / nectar); Common Buckeye & Great Copper butterflies (nectar)
Butterflies & moths hosted ( 4
likely
* )
SHOW ALL
*
Western Yellowstriped Armyworm
Spodoptera praefica
Spodoptera praefica
*
Spotted Straw Sun Moth
Heliothis phloxiphaga
Heliothis phloxiphaga
*
Sunflower Moth
Homoeosoma electella
Homoeosoma electella
*
Dejongia californicus
Dejongia californicus
Landscaping Information
Natural Setting
Site Type
Salt marshes, slough banks
Climate
Annual Precipitation: 19.8" - 19.8", Summer Precipitation: 0.23" - 0.23", Coldest Month: 47.8" - 47.8", Hottest Month: 72.5" - 72.5", Humidity: 1.57" - 18.29", Elevation: 16" - 16"
Alternative Names
Botanical Names
: Grindelia paludosa, Grindelia hirsutula
Common Names
: Hairy Gumplant, Marsh Grindelia Hairy Gumweed
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Suisun Gumplant
Grindelia x paludosa
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
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