CPC Plant Profile: Last Chance Townsend-daisy
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Plant Profile

Last Chance Townsend-daisy (Townsendia aprica)

This picture shows the low-growing perennial with the yellow ray flowers. Photo Credit: ©R. Delmatier
Description
  • Global Rank: G2 - Imperiled
  • Legal Status: Federally Threatened
  • Family: Asteraceae
  • State: UT
  • Nature Serve ID: 145298
  • Date Inducted in National Collection: 02/10/1987

Listed as a threatened species in 1985 (USFWS 1985). A stemless, low-growing perennial with leaves and flowers that are born at ground level. Flowers are disproportionately large with yellow to golden rays. The lastchance townsendia is a specialist on Arapien and Mancos Shale formations and co-occurs with pinyon-juniper vegetation, blue grama, black sagebrush, snakeweed and little rabbitbrush. Plants flower in April and May and are pollinated by at least eight species of solitary bees.

Participating Institutions
Updates
  • 09/30/2020
  • Reproductive Research

Tepedino is studying the reproductive biology of this species (Tepedino 2002)

Nature Serve Biotics
  • 05/02/2017

A narrow endemic of south-central Utah that is known from 23 populations. The total number of individuals is approximately 6,500. The species has low seed set and has also seen declines over the last 20 years due to unfavorable climatic conditions. The biggest threats to the species are coal mining and gas exploration and cattle grazing.

Sylvia Torti
  • 01/01/2010

Mineral, oil and gas development, road building, livestock grazing and trampling, and off-road vehicles (USFWS 1993)

Sylvia Torti
  • 01/01/2010

15 separate known populations with approximately 5,500 individuals total (USFWS 1993)

Sylvia Torti
  • 01/01/2010

Tepedino is studying the reproductive biology of this species (Tepedino 2002)

Sylvia Torti
  • 01/01/2010

Most populations of this species occur on Bureau of Land Management land, with an additional one to two populations on Forest Service land and in a National Park.

Sylvia Torti
  • 01/01/2010

Continued monitoring of population size is critical to protecting this species.

Sylvia Torti
  • 01/01/2010

This species has been grown to flower and seed in the greenhouse, hence the propagation protocol is believed to be well-established.

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Photos
Nomenclature
Taxon Townsendia aprica
Authority Welsh & Reveal
Family Asteraceae
CPC Number 4300
ITIS 38539
USDA TOAP
Common Names Last Chance townsendia | last chance Townsend daisy
Associated Scientific Names Townsendia aprica | Townsendia jonesii var. lutea | Townsendia jonesii (Beaman) Reveal var. lutea (S.L. Welsh)
Distribution Found only on appropriate soils in central Utah (Emery, Sevier, and Wayne County).
State Rank
State State Rank
Utah S2
Habitat

Occurs in small barren openings of pinyon-juniper vegetative communities. Soil characteristics are very specific and form """"islands"""" of suitable habitat within a """"sea"""" of unsuitable geologic substrates with their resultant soil types.

Ecological Relationships

Townsendia aprica is pollinated by solitary bees: eight species of metallic blue and green megachilid bees and one anthophorid bee. Seed set may frequently be pollinator-limited (USFWS 1993). Townsendia aprica occurs with a number of other listed or sensitive species.

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Centris bees Ceratina nanula Confirmed Pollinator Link
Long-horned bees Synhalonia fulvitarsis Confirmed Pollinator Link
Leaf-cutting bees Dioxys pomonae Confirmed Pollinator Link
Leaf-cutting bees Stelis pavonina Confirmed Pollinator Link
Leaf-cutting bees Osmia Confirmed Pollinator Link
Long-horned bees Synhalonia fulvitarsi Confirmed Pollinator Link
Solitary bees Confirmed Pollinator Link
Leaf-cutting bees Metallic blue bees Confirmed Pollinator Link
Leaf-cutting bees Green megachilid Osmia bees Confirmed Pollinator Link
Stingless bees Tetralonia fulvitarsus Confirmed Pollinator Link
Centris bees Ceratina nanula Floral Visitor Link
Cuckoo bees Nomada Floral Visitor Link
Synhalonia fulvitarsus Floral Visitor Link
Sweat bees Lasioglossum halictid bee Floral Visitor Link
Leaf-cutting bees Dioxys pomonae Floral Visitor Link
Leaf-cutting bees Stelis paronia Floral Visitor Link

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