Grindelia fastigiata

(Pointed Gumweed)

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Grindelia fastigiata, Colorado National Monument, Mesa Co. 4344

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Grindelia fastigiata, Colorado National Monument, Mesa Co. 4360

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Grindelia fastigiata, Colorado National Monument, Mesa Co. 4341

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Grindelia fastigiata, Colorado National Monument, Mesa Co. 4375

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Grindelia fastigiata, Colorado National Monument, Mesa Co. 4368

Scientific Name Grindelia fastigiata (Grindelia hirsutula var. fastigiata) USDA PLANTS Symbol GRFA
Common Name Pointed Gumweed ITIS Taxonomic Serial No. 37446
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Plains and foothills (4500 to 8500 ft.); dry, often sandy soils in open areas, washes, roadsides, open woodlands.
Plant: Erect perennial, light brown or greenish stems with multiple branches; 12 to 60 inches tall.
Leaves: Basal and alternate stem leaves; lower to mid stem leaves are oblanceolate and edges often have small, irregular teeth; upper stem leaves more linear and gland-dotted; leaves 0.6 to 5.2 inches long and 0.4 to 0.7 inches wide (upper leaves smaller than lower ones).
Inflorescence: Rayless composite flower heads about 0.5 inch across, with yellow to orange disk florets; 4 to 8 layers of thick, recurved, shiny green, and sticky phyllaries.
Bloom Period: July to September.
References: "Flora of Colorado" by Jennifer Ackerfield, National Park Service and American Southwest; G. hirsutula var. fastigiata in Flora of North America.
Note: G. fastigulata is considered by some botanists to be one of the many varieties of G. hirsutula.
BONAP Distribution Map


Map Color Key
Colorado Status:
Native

© Tom Lebsack 2024

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County