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Montana Field Guides

Hooker's Townsend-daisy - Townsendia hookeri
Other Names:  [including] Townsendia nuttallii

Native Species

Global Rank: G5
State Rank: S4
C-value: 4


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Perennial with a branched caudex, forming small mats. Stems nearly obsolete. Herbage densely strigose. Leaves linear or linear-oblanceolate, 5–30 mm long. Involucre campanulate, 7–12 mm high; phyllaries sparsely strigose, acuminate, ciliate, scarious-margined with a small tuft of cilia at the tip. Rays white to pink; ligules 7–10 mm long. Disk corollas 4–6 mm long, shorter than the pappus. Achenes 3–5 mm long, pubescent with hairs branched at the tip (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Montana has nine Townsendia species. The following Townsendia species have stems obscured by leaves and flowers, are perennial, and usually have a woody branched caudex, but can be separated by a combination of these characteristics:

Hooker’s Townsend-daisyTownsendia hookeri
*Leaves: Densely strigose. Linear to oblanceolate in shape, 5-30 mm long.
*Flowers: The involucre is 7-12 mm high. Involucral bracts have ciliate margins and are tipped with a tuft of hairs (cilia). Ray florets have white to pink petals.
*Habitat: Occurs in grasslands, sagebrush steppe, and woodlands at lower elevations.

Sword TownsendiaTownsendia spathulata, SOC
*Leaves: Wooly to villous (long, soft, crooked, and unmatted hairs); Spoon-shaped except in Broadwater County where leaves are nearly linear. 5-10 mm long.
*Flowers: Heads are nearly stemless. Involucre is 6-10 mm high. Involucral bracts are villous and have acute tips except in Broadwater County where they are sparsely strigose. Ray florets have off-white or pinkish petals, 4-10 mm long.
*Habitat: Grows on limestone derived soils from low elevations to alpine.

Cushion Townsend-daisyTownsendia condensata, SOC
*Leaves: Villous, spoon-shaped, and 5-20 mm long.
*Flowers: Heads are nearly stemless. Involucre is 10-25 mm high. Ray florets have pink petals that dry to lavender, 6-15 mm long.
*Habitat: Found at and above timberline (subalpine/alpine).

Slender Townsend-daisyTownsendia leptotes, Status Under Review
*Leaves: Sparsely strigose (stiff, straight, sharp, and appressed hairs). Linear to oblong in shape, and 12-25 mm long.
*Flowers: Heads usually sessile. Involucre is 8-12 mm high. Ray florets have white to pinkish petals.
*Habitat: Rocky ridges and sandy slopes.

Silky Townsend-daisyTownsendia exscapa
*Leaves: Strigose. Linear to oblanceolate in shape, 10-40 mm long.
*Flowers: The involucre is 12-20 mm high. Involucral bracts have ciliate margins and are not tipped with a tuft of hairs (cilia). Ray florets have white to pink petals.
*Habitat: Occurs in grasslands and sagebrush steppe at lower elevations.

Hoary Townsend-daisyTownsendia incana
*Leaves: Densely strigose. Linear in shape, 10-20 mm long.
*Flowers: Heads have peduncles of 3-40 mm long that grow from leafy stems of 1-3 cm long. The involucre is 6-9 mm high. Ray florets have pinkish petals.
*Fruits: Achenes are hairy.
*Habitat: Grows on sandy calcareous soil of grasslands, sagebrush steppe, and woodlands at lower elevations.

Wyoming Townsend-daisyTownsendia montana
*Leaves: Strigose. Leaves are oblong to spatulate in shape, 10-30 mm long.
*Flowers: Heads have peduncles of 3-40 mm long that grow from leafy stems of about 1 cm long. Involucre is 6-11 mm high. Ray florets have blue petals.
*Fruits: Achenes typically lack hairs (glabrous).
*Habitat: Grows on stony, usually calcareous soils of fellfields and meadows in the alpine-subalpine zone.

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
YT to UT, CO and NE (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 48

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Grasslands, sagebrush steppe, coniferous woodlands; plains, valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Rosgaard, A.I., Jr. 1981. Ecology of the mule deer associated with the Brackett Creek winter range in the Bridger Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 76 p.
    • Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
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Citation for data on this website:
Hooker's Townsend-daisy — Townsendia hookeri.  Montana Field Guide.  .  Retrieved on , from