Hypochoeris glabra L., Asteraceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: smooth cat's ear

Habit:  herb

Description:  "Taprooted annual herbs 1-4 dm tall, unbranched or sparingly branched, glabrous or nearly so. Leaves oblanceolate, 2.5-15 cm long, 0.7-3.5 cm wide, glabrous or sparsely pubescent along the veins and margins, toothed or pinnatifid.  Involucre 8-10 mm high at anthesis and nearly twice that in fruit; rays scarcely exceeding the involucre.  Outermost achenes beakless, the remainder with a long slender beak"  (Wagner et al., 1999; pp. 327, 1861).

Habitat/ecology:  In Hawai‘i, "naturalized often in relatively dry sites, 600-2,800 m" (Wagner et al., 1999; pp. 327, 1861).

Propagation:  Seed

Native range:  Europe.

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 8) "An occasional weed of grassland etc.". Vouchers cited: W.R. Sykes NI 201 (CHR); P.S. Green 1497 (A); 1898, I. Robinson (NSW); 1902, J.H. Maiden & J.L. Boorman (NSW); J.D. McComish 240 (NSW)
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive	Staples, George W./Imada, Clyde T./Herbst, Derral R. (2003) (p. 9) Vouchers cited: G.C. Munro 504 (BISH), G.C. Munro 430 (BISH), E.Y. Hosaka 471 (BISH)
State of Hawaii Hawaiian Islands	Lehua Island	introduced invasive	Herbst, Derral R./Wagner, Warren L. (1996) (p. 10) Voucher cited: Flynn 4859 (BISH)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327) Voucher cited: Forbes 773.Mo (BISH)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 327)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	MacKee, H. S. (1994) (p. 36) Vouchers cited: MacKee 36308, Cherrier in MacKee 43956 Spontané
New Zealand (offshore islands) Kermadec Islands	Kermadec Islands	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 334)
New Zealand (offshore islands) Kermadec Islands	Raoul Island	introduced invasive	Sykes, W. R. (1977) (p. 93) May no longer be present (possibly destroyed in vocanic eruption).

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Chile (continental) Chile	Chile (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 188)
New Zealand New Zealand	New Zealand (country)	introduced invasive	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 334) "Grassland, pasture, dunes, riverbeds, coastal rock, stony terraces, railway ballast, waste land, gardens, roadsides".

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

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

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

References:

Herbst, Derral R./Wagner, Warren L. 1996. Contributions to the Flora of Hawai‘i. V. In: Evenhuis, Neal L. and Miller, Scott, E., eds. Records of the Hawaii Biological Survey for 1995. Part 2: Notes. Bishop Museum Occasional Papers. 46:8-12.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Orchard, Anthony E., ed. 1994. Flora of Australia. Vol. 49, Oceanic islands 1. Australian Government Publishing Service, Canberra.

Staples, George W./Imada, Clyde T./Herbst, Derral R. 2003. New Hawaiian plant records for 2001. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 2001-2002. Part 2: Notes. Bishop Museum Occasional Papers. 74:7-21.

Swarbrick, John T. 1997. Weeds of the Pacific Islands. Technical paper no. 209. South Pacific Commission, Noumea, New Caledonia. 124 pp.

Sykes, W. R. 1977. Kermadec Islands flora: an annotated checklist. New Zealand Department of Scientific and Industrial Research Bulletin 219, Wellington. 216 pp.

Tassin, Jacques. 2005. Jacques Tassin (IAC-CIRAD), personal communication.

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).

Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. 1988. Flora of New Zealand, Volume IV: Naturalised pteridophytes, gymnosperms, dicotyledons. Botany Division, DSIR, Christchurch. 1365 pp.