Pacific Island Ecosystems at Risk (PIER)

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Antirrhinum orontium
L., Plantaginaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: corn snapdragon, lesser snapdragon, linearleaf snapdragon, small snapdragon, weasel's-snout

Habit:  herb

Description:  "Annual herbs (0.5-) 2-5 dm tall; stems erect, sparingly branched, glabrous to sparsely hirsute in lower parts, glandular pubescent in upper parts.  Leaves linear to oblong-elliptic, 20-50 mm long, 2-7 mm wide, subsessile.  Flowers in lax, terminal racemes, pedicels very short in flower, elongating up to 4 mm long in fruit, bracts similar to leaves but much smaller; calyx 10-17 mm long, the lobes linear, the longest one ca. 1.5 times as long as shortest one; corolla pink, rarely white, 10-15 mm long, as long as or slightly shorter than calyx.  Capsules ovoid, gibbous, 8010 mm long, glandular pubescent.  Seeds somewhat flattened, 1 face smooth, keeled and prolonged into a narrow wing, the other face finely tuberculate, with a wide, raised, sinuate, papillose border"  (Wagner et al., 1999; pp. 1236-1237).

Habitat/ecology:  In Hawai‘i, "naturalized on dry ridges"  (Wagner et al., 1999; p. 1237).

Propagation:  Seed

Native range:  "Native to southwestern and central Europe" (Wagner et al., 1999; p. 1237).

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
Staples, George W./Imada, Clyde T./Herbst, Derral R. (2002) (p. 15)
Voucher cited: Z.E. Ellshoff s.n. (BISH 664558)
State of Hawaii
Hawaiian Islands
Kaho‘olawe Island introduced
invasive
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2006) (p. 41)
Voucher cited: Starr, Starr & Sokishi 040330-5 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1236-1237)
East Maui
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Starr, Forest/Martz, Kim/Loope, Lloyd L. (2002) (p. 25)
East Maui. Vouchers cited: Starr & Martz 000502-4 (BISH), Starr & Martz 000318-1 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank (2007) (p. 31)
West Maui. Voucher cited: Oppenheimer, Brosius, Miller & Wright H40606 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1236-1237)
Voucher cited: Munro 54 (BISH)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
MacKee, H. S. (1994) (p. 129)
Voucher cited: Schmid 4054 (NOU)
Spontané
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Japan
Japan
Japan (country) introduced
Mito, Toshikazu/Uesugi, Tetsuro (2004) (p. 188)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 1180)
United States (west coast)
United States (west coast states)
USA (Oregon) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (California) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (west coast)
United States (west coast states)
USA (Washington) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
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
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)
United States (continental except west coast)
United States (other states)
USA (Florida) introduced
U.S. Dept. Agr., Nat. Res. Cons. Serv. (2013)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 13 DEC 2007 and was last updated on 17 DEC 2007.