Trillium angustipetalum
(Torr.) J.D.Freeman
Graphe en cours d’indexation
Calcul du tissu écologique de Trillium angustipetalum.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
DD · Données insuffisantes?Inconnue- Évaluation
- 2020 · v3.1
- Altitude
- 30 – 2000 m
- Profondeur
- – m
État de la populationTexte officiel évaluation IUCNExpert
No population data are available for the species, though the species is noted to be uncommon (Case and Case 2009).
Menaces identifiées(3 menaces classées CMP-IUCN)
7_1_3Trend Unknown/UnrecordedCausing/Could cause fluctuationsWhole (>90%)Ongoing1_1Housing & urban areasUnknownMinority (<50%)Unknown8_1_2Named speciesUnknownUnknownOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
There are few documented threats to this species. Like other Trillium species, competition with invasive plants such as Himalayan Blackberries (Rubus armeniacus) has been observed. Both subpopulations are also present in areas where wildfire is a real possibility. The San Luis Obispo subpopulation could also be threatened by expansion of nearby urban centres. More research on potential threats is necessary.
Habitats préférentiels (classification IUCN)
1_4Forest - Temperate3_8Shrubland - Mediterranean-type Shrubby Vegetation
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
Though no specific protections are in place for the species, it incidentally occurs in a number of protected areas, including Montana de Oro State Park, in San Luis Obispo County, and Yosemite National Park (IUCN and UNEP-WCMC 2019). The species is included in ex situ collections at six botanic gardens (BGCI 2019).
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation2_1Species mortality2_3_2Competition2_3_7Reduced reproductive success
Usage & commerce (1)Use & Trade — IUCNExpert
13Pets/display animals, horticulturenational
Priorités de recherche (4)Research Needed Classification — IUCNExpert
1_1Taxonomy1_2Population size, distribution & trends1_5Threats3_1Population trends
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Royaumes biogéographiques
Systèmes (terrestre/eau douce/marin)
Formes de croissance
Références bibliographiques (13)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2020. The IUCN Red List of Threatened Species. Version 2020-2. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 13 June 2020).
- Chauhan, H. K., Bisht, A. K., Bhatt, I. D., Bhatt, A. and Gallacher, D. 2019. Trillium – toward Sustainable Utilization of a Biologically Distinct Genus Valued for Traditional Medicine. <i>The Botanical Review</i> 85(3): 252-272.
- IUCN and UNEP-WCMC. 2019. The World Database on Protected Areas (WDPA). Cambridge, UK Available at: <a href="https://www.protectedplanet.net/">https://www.protectedplanet.net/</a>. (Accessed: 4 January 2019).
- The Calflora Database. 2019. Calflora: Information on California plants for education, research and conservation [web application]. Berkeley, CA Available at: <a href="https://www.calflora.org//">https://www.calflora.org//</a>.
- BGCI. 2018. Botanic Gardens Conservation International (BGCI) - Plant Search. Available at: <a href="https://www.bgci.org/plant_search.php">https://www.bgci.org/plant_search.php</a>.
- United Plant Savers. 2018. Trillium. Available at: <a href="https://unitedplantsavers.org/trillium/">https://unitedplantsavers.org/trillium/</a>. (Accessed: 19 December 2018).
- Kalisz, S., Spigler, R. B. and Horvitz, C. C. 2014. In a long-term experimental demography study, excluding ungulates reversed invader’s explosive population growth rate and restored natives. <i>Proceedings of the National Academy of Sciences</i> 111(12): 4501-4506.
- McNeal, D. W. and Ness, B. D. 2012. Trillium angustipetalum. Berkeley, CA Available at: <a href="http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=47215">http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=47215</a>. (Accessed: 11 December 2018).
- Case, F. W. and Case, R. B. 2009. <i>Trilliums</i>. Timber Press, Portland, OR.
- Vellend, M., Knight, T. M. and Drake, J. M. 2006. Antagonistic effects of seed dispersal and herbivory on plant migration: Dispersal, herbivory and migration. <i>Ecology Letters</i> 9(3): 319-326.
- Tallmon, D. A., Jules, E. S., Radke, N. J. and Mills, L. S. 2003. Of Mice and Men and Trillium: Cascading Effects of Forest Fragmentation. <i>Ecological Applications</i> 13(5): 1193-1203.
- Flora of North America (FNA) Editorial Committee. 2002. <i>Flora of North America North of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales</i>. Oxford Univ. Press, New York.
- Freeman, J. D. 1975. Revision of Trillium Subgenus Phyllantherum (Liliaceae). <i>Brittonia</i> 27(1): 1-62.
Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert
Wayman, K.A., Meredith, C.R. & Trillium Working Group 2019 2020. Trillium angustipetalum. The IUCN Red List of Threatened Species 2020: e.T146084305A146089200. Accessed on 05 May 2026.
Distribution mondiale
Phénologie
Consulter sur les bases externes
Note nomenclaturale & synonymesDétails taxonomiques + synonymes CoLExpert
Note nomenclaturale
TAXREF v18 — INPN/MNHNSynonymes (5)— redirigent vers cette page
- Trillium chloropetalum var. angustipetalum(Torr.) Munz
- Trillium chloropetalum var. angustipetalum(Torr.) Howell
- Trillium giganteum var. angustipetalum(Torr.) R.R.Gates
- Trillium sessile var. angustipetalumTorr.
- Trillium sessile var. angustipetalumL.
Sources : Catalogue of Life Cross-References (synonymes) · TAXREF v18 INPN/MNHN (commentaires FR).