Pacific Island Ecosystems at Risk (PIER)

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Cryptotaenia canadensis
(L.) DC., Apiaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Deringa canadensis (L.) Kuntze

Common name(s): [more details]

English: Canadian honewort, honewort, white chervil, wild chervil

Habit:  herb

Description:  "Plants slender, 3-12 dm tall.  Basal and lower cauline leaves ternately compound, deltate, 2-10 cm wide, the leaflets obovate to rhombic-obovate, margins doubly serrate, the teeth mucronate, apex obtuse to acuminate, base cuneate; upper cauline leaves reduced, the leaflets narrow, petioles usually longer than blades, 7-20 cm long.  Rays 2-7, slender, stiffly ascending, 1-6 cm long, pedicels 2-10, ascending, 2-35 mm long.  Fruit linear to ovoid-oblong, 3.5-8 mm long, 1-3 mm wide, mericarps readily separating" (Wagner et al., 1999; p. 203).

Habitat/ecology:  In Hawai‘i, "occasionally cultivated and naturalized" (Wagner et al., 1999; p. 203).

Propagation:  Seed

Native range:  Canada and the United States; naturalized elsewhere (GRIN).

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
Hawai‘i (Big) Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 203)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 203)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L./Meidell, J. Scott/Bartlett, R. T. (1999) (p. 7)
Voucher cited: Oppenheimer H19801 (BISH)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Oppenheimer, Hank L./Meidell, J. Scott/Bartlett, R. T. (1999) (p. 7)
Voucher cited: Oppenheimer H99701 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
cultivated
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 203)
Voucher cited: Pope 1271 (BISH)
Also reported from
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Canada (except British Colombia)
Canada
Canada (country) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Manitoba, New Brunswick, Ontario, Quebec
United States (continental except west coast)
United States (other states)
United States (other states) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)

Comments:  Reported as possibly an invasive plant in the Hawaiian Islands per Staples et al., 2000.


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This page was created on 9 MAY 2005 and was last updated on 17 MAR 2013.