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).
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-daisy –
Townsendia 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 Townsendia –
Townsendia 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-daisy–
Townsendia 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-daisy –
Townsendia 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-daisy –
Townsendia 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-daisy –
Townsendia 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-daisy –
Townsendia 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.
