Pacific Island Ecosystems at Risk (PIER)

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Dyssodia tenuiloba
(DC.) B.L.Robinson, Asteraceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Hymenatherum tenuilobum DC.; Thymophylla tenuiloba (DC.) Small

Common name(s): [more details]

English: bristleleaf pricklyleaf, Dahlberg daisy, Dahlberg's daisy, golden fleece

Habit:  herb

Description:  "A trailing annual 12-16 inches long and half as tall, Dahlberg daisy emits a resinous-aromatic odor when handled.  It has leaves pinnately divided into 7-11 linear, entire lobes, oppositely arranged at the base of the plant but alternate higher along the stem. The stalked, yellow, radiate flower heads are about 0.5 inches in diameter, with a cuplike involucre (the involucral bracts fused 3/4 their length) that sheds cylindrical fruit about 0.15 inches long, each bearing a pappus of about 10 scales and 3 bristles"  (Staples & Herbst, 2005; p. 168).

Habitat/ecology:  "Thrives in sunny, dry spots on sandy, well-drained soil  (Staples & Herbst, 2005; p. 168).

Propagation:  Seed

Native range:  Southern Texas and adjacent Mexico  (Staples & Herbst, 2005; p. 168).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
Kaho‘olawe Island introduced
invasive
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2006) (p. 32)
Vouchers cited: Starr, Starr, Higashino &am p; Abbott 040330-1(BISH), Starr, Starr, Higashino & Brunch 040607-2 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David H./Flynn, Tim (2006) (p. 2)
Voucher cited: E. Pickup s.n. (BISH, NY, PTBG, US)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
cultivated
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2010) (p. 62)
Voucher cited: Starr & Starr 070402-01 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Starr, Forest/Martz, Kim/Loope, Lloyd L. (2002) (p. 18)
Vouchers cited: West Maui: Starr & Martz 000426-1 (BISH); East Maui: Starr & Martz 000126-1 (BISH)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2006) (p. 32)
Voucher cited: Starr & Starr 050517-14 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Starr, Forest/Martz, Kim/Loope, Lloyd L. (2002) (p. 18)
Voucher cited: B.H. Gagne 3150 (BISH)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Mexico
Mexico
Mexico (United Mexican States) native
Staples, George W./Herbst, Derral R. (2005) (p. 168)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
United States (continental except west coast)
United States (other states)
United States (other states) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Alabama, Louisiana, Mississippi
Naturalized
United States (continental except west coast)
United States (other states)
United States (other states) native
Staples, George W./Herbst, Derral R. (2005) (p. 168)
Southern Texas.
United States (continental except west coast)
United States (other states)
USA (Florida) native
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
invasive
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Naturalized
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
invasive
cultivated
Staples, George W./Herbst, Derral R. (2005) (p. 168)


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This page was created on 11 FEB 2010 and was last updated on 17 MAR 2010.