Plant Image
Plant


Yavapai County Native & Naturalized Plants

Grindelia laciniata - cutleaf gumweed

Other Common Names: cutleaf gumweed
Plant Form: Forb or Subshrub

Family: Asteraceae


   
 
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Forb Plant Description

Origin: Native   Life Cycle: Biennial   Similar Species: Grrindelia arizonica
General Desc: Grows several feet high and wide in a bushy shape with numerous bright yellow to orange flower heads which often have fairly erect ray flowers. Flowers release a strange and strong medicinal smell.
Identification notes: Biennial; stems smooth; leaves alternate, pinnately lobed, margins toothed, stem leaves glandular; flower heads yellow to orange, in loose, rounded clusters, ray flowers only, bracts have erect tips; some sources treat as variation of G. arizonica.
Height: 1/2 to 1-1/2 feet


Habitat

Habitat Description: Open, rocky slopes, mesas, ridges, canyons, fields, stream banks. Old fields, forest/woodland, forest edge and conifer.
Plant Communities: Pinyon Juniper Woodland, Montane Conifer Forest, Riparian, Disturbed Areas
Elevation: 5000 - 6000 feet


Flower Characteristics

Color: Yellow to orange     Shape: Daisy or dandelion-like not in clusters     Tubular: N     Flowering Period: Jul - Sep
Description: Several to numerous flower heads; yellow to orange ray florets up to 1/2 inch in length; flower heads are 1/2 to 2-3/4 inches wide; bracts of heads gummy and strongly curled; resin covering the flowers and flower buds are thick and milky.


Leaf and Stem Characteristics

Leaf Color: Pale green     Leaf Type: Simple     Leaf Shape: Narrow     Leaf Margin: Toothed     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: Several stems from same base; narrow, linear leaf blades, 1 to 2-3/4 inches long; edges irregular and finely slashed; pale green, smooth. deep narrow irregular segments


Fruit and Seed Characteristics

Fruit Color: Brown   
Fruit Type: Achene
Fruit Notes: Single-seeded; 1/16 to 1/4 inch long; does not open when dispersed.


  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
http://cales.arizona.edu/yavapaiplants/SpeciesDetailForb.php  
Last Updated: Dec 13, 2022
Content Questions/Comments: Email Matt Halldorson  
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