Hippeastrum striatum (Lam.) H. E. Moore, Amaryllidaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  See Hippeastrum puniceum risk assessment.

Other Latin names:  Amaryllis striata Lam.; Hippeastrum puniceum, misapplied in Hawai‘i and likely elsewhere.

Common name(s): [more details]

English: Barbados lily, orange lily

Habit:  herb

Description:  "Perennial herb; bulbs with short neck.  Leaves strap-shaped, to 12 x 1 inches, bright green, blunt-tipped.  Inflorescence a 2-4-flowered umbel, scape to 12 inches tall, hollow; bracts 1.25-2.5 inches long.  Flowers horizontal or drooping, funnel-shaped, 3-4.5 inches long; corolla tube greenish, lobes bright orange, red, or scarlet, with greenish keel halfway along lobe; stamens included, filaments without scales where attached to tepals (bristles sometimes present); style ca. as long as corolla, stigma 3-forked"  (Staples & Herbst, 2005; p. 689).

See Hippeastrum puniceum for most Pacific plants.

Habitat/ecology:  In Hawai‘i, "commonly cultivated and naturalized along irrigation ditches, in pastures, and other disturbed sites, 80-300 m" (Wagner et al., 1999; p. 1463).

Propagation:  "Its dispersal mechanism is perplexing, as seeds have not yet been observed [in Hawaii], but the underground onion-like bulbs produce smaller bulblets that could be moved around with soil and yard waste"  (Oppenheimer, 2008; p. 29).

Native range:  Southern and central Brazil, widely cultivated elsewhere  (Staples & Herbst, 2005; p. 689).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced invasive cultivated	Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 33) Naturalized
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1463, 1902) Originally misidentified as Hippeastrum puniceum (Lam.) Voss
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 1463, 1902) Originally misidentified as Hippeastrum puniceum (Lam.) Voss; voucher cited: Herbst & Ishikawa 5683 (BISH)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive cultivated	Oppenheimer, Hank (2008) (p. 29) Voucher cited: Oppenheimer, Perlman & Tangalin H30713 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Oppenheimer, Hank L./Bartlett, Randal T. (2002) (p. 9) Vouchers cited: Oppenheimber & J. Kunna H40005 (BISH), Oppenheimer H119918 (BISH), Oppenheimer H119919 (BISH), Oppenheimer H119921 (BISH)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Oppenheimer, Hank (2008) (p. 29) Voucher cited: Oppenheimer H110721 (BISH, PTBG)
Marshall Islands Ratak Chain	Majuro (Mãjro) Atoll	introduced cultivated	Vander Velde, Nancy (2003) (p. 23)

Additional information:
Additional online information about Hippeastrum striatum is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Hippeastrum striatum as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Hippeastrum striatum may be available from the Germplasm Resources Information Network (GRIN).

References:

Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. 2010. Checklist of the vascular plants of Pohnpei with local names and uses. Allertonia, in press. National Tropical Botanical Garden, Lawai, Hawai‘i. 146 pp.

Oppenheimer, Hank. 2008. New Hawaiian plant records for 2007. In: Evenhuis, Neal L. and Eldredge, Lucias G., eds. Records of the Hawaii Biological Survey for 2007. Bishop Museum Occasional Papers 100:22-38.

Oppenheimer, Hank L./Bartlett, Randal T. 2002. New plant records from the main Hawaiian Islands. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 2000. Part 2: Notes. Bishop Museum Occasional Papers. 69:1-14.

Staples, George W./Herbst, Derral R. 2005. A tropical garden flora: plants cultivated in the Hawaiian Islands and other tropical places. Bishop Museum Press, Honolulu. 908 pp.

Staples, George W./Herbst, Derral/Imada, Clyde T. 2000. Survey of invasive or potentially invasive cultivated plants in Hawai‘i. Bishop Museum Occasional Papers No. 65. 35 pp.

U.S. Dept. Agr., Agr. Res. Serv. 2011. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Vander Velde, Nancy. 2003. The vascular plants of Majuro Atoll, Republic of the Marshall Islands. Smithsonian Institution, Atoll Research Bulletin No. 503:1-141.

Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. 1999. Manual of the flowering plants of Hawaii. Revised edition. Bernice P. Bishop Museum special publication. University of Hawai‘i Press/Bishop Museum Press, Honolulu. 1919 pp. (two volumes).