Pacific Island Ecosystems at Risk (PIER)

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Watsonia borbonica
(Pourr.) Goldblatt, Iridaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Gladiolus pyramidatus Andrews; Watsonia pyramidata (Andrews) Klatt; Watsonia rosea Banks ex Ker Gawl.

Common name(s): [more details]

English: bugle-lily, cape bugle-lily, watsonia

Habit:  herb

Description:  "Plants 1.2-2 m tall, with corms 3-4 cm in diameter, covered with coarsely reticulate tunics.  Leaves lanceolate, 40-90 cm long, 2-4 cm wide, margins hyaline and moderately thickened.  Flowers actinomorphic, in nearly straight, erect, branched spikes, bracts green below, brown-membranous above, 10-18 mm long; tepals pink to white, 30-36 mm long, 13-18 mm wide, inner whorl somewhat larger than outer whorl, spreading, perianth tube 20-27 mm long, upper part funnelform, nearly horizontal, 8-12 mm long; filaments 13-18 (-25) mm long, unilateral and either decumbent or arched and lying below upper tepal; anthers 10-13 mm long.  Capsules narrowly ellipsoid, 20-30 mm long, 7-10 mm wide. Seeds 8-10 mm long, winged at both ends"  (Wagner et al., 1999; p. 1449).

Habitat/ecology:  In Hawaii, "cultivated and sparingly naturalized"  (Wagner et al., 1999; p. 1449).

Propagation:  Seed

Native range:  South Africa (southwestern Cape Province) (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
cultivated
Atkinson, Rachel/Sawyer, John (2011)
subsp. borbonica
Chile (offshore islands)
Juan Fernández Islands
Isla Más a Tierra (Robinson Crusoe Island) introduced
invasive
cultivated
Danton, Philippe/Perrier, Christophe/Martinez Reyes, Guido (2006) (pp. 502, 548, 558)
Voucher cited: Danton I(5/12)1359. "Es una especie vigorosa de rápida extensión que ya se naturalizó en varias partes del pueblo de San Juan Bautista".
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 39)
Voucher cited: D. Lorence et al. 5746 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 1449)
East Maui. Voucher cited: Boyum s.n. (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L./Bartlett, Randal T. (2002) (p. 9)
West Maui. Voucher cited: C. R. Annable, H. Oppenheimer & G. Ray 3923 (BISH)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
New South Wales introduced
invasive
cultivated
National Herbarium of New South Wales (2013)
"A locally naturalized garden escape".


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This page was created on 17 DEC 2010 and was last updated on 13 JAN 2011.