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Flowers


Yavapai County Native & Naturalized Plants

Calycoseris parryi - yellow tackstem

Other Common Names: tackstem
Plant Form: Forb or Subshrub

Family: Asteraceae


   
 
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Leaves and flowers
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
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Deaver Herbarium (Northern Arizona University): Attribution-Non-Commercial (CC BY-NC)
Forb Plant Description

Origin: Native   Life Cycle: Annual   Similar Species: Calycoseris wrightii
General Desc: Showy winter annual usually branched from base, with taproot and milky sap; distinguished by its flower heads of only ligulate florets (ray flowers); herbage conspicuously dotted with red, brown or black, stipitate (stalked), glands.
Identification notes: Winter annual; much branched from the base; flowers bright yellow, ray flowers only; leaves finely divided, sprinkled with tack shaped glands above; fruit (achene) separates from pappus (white bristles) at maturity.
Height: 2 to 12 inches


Habitat

Habitat Description: Found on sandy to gravelly, limestone soils, in washes, on slopes and sand dunes.
Plant Communities: Desert Scrub, Semidesert Grasslands, Riparian
Elevation: 3000 - 4000 feet


Flower Characteristics

Color: Yellow     Shape: Daisy or dandelion-like not in clusters     Tubular: N     Flowering Period: Mar - May
Description: Flower heads with bright yellow ligules (strap-shaped ray flowers); involucres (bracts subtending flowers) 1/2 inch long and 1/8 inch wide, minutely bristly, in 2 series, the outer short and wide, the inner narrow, numerous, margins scarious (thin, dry).


Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Pinnatifid     Leaf Margin: Smooth     Leaf Attachment: Basal and alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Leaves in basal rosettes, alternate along the stems; all leaves without stems; blades to 4 inches long, pinnately divided into narrow lobes, lobes opposite, 1/16 inch or less; upper leaves reduced and narrow.


Fruit and Seed Characteristics

Fruit Color: Light brown or gray   
Fruit Type: Achene
Fruit Notes: Achenes fusiform (tapered at both ends), 5 to 6 ribbed with deep grooves between the ribs, faces not wrinkled; tapering into short beak, expanded at tip into shallow cup with many small teeth. Pappus of white bristles, 1/2 inch long, deciduous in a ring.


  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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