Species Details

Tuctoria greenei

Greene's tuctoria

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Photo of Tuctoria greenei
©2008 F. Gauna
Photo of Tuctoria greenei
©2008 Heather Davis
Photo of Tuctoria greenei
©2008 F. Gauna
Notes:
Threatened by agriculture, urbanization, overgrazing, and habitat fragmentation and loss. See Botanical Gazette 16:146 (1891) for original description, American Journal of Botany 69:1082-1095 (1982) for taxonomic treatment, and Conservation Genetics, pp. 1-14 (2011) for information on population genetics.
Threats:
Taxonomy:
Threat List Total: 12
Total EOs % of EOs
EOs with Threat Listed: 42 84 %
THREAT LIST:
Grazing 29 58%
Agriculture 20 40%
Non-native plant impacts 13 26%
Foot traffic/trampling 5 10%
Disking 3 6%
Total Occurrences: 50
Element Occurrence Ranks:
A B C D X U
3 12 6 5 19 5
Occurrence Status:
Historical >20 Years 30
Recent <=20 Years 20
Presence:
Presumed Extant 31
Possibly Extirpated 6
Presumed Extirpated 13
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Butte (BUT), Fresno (FRE)*, Glenn (GLE), Madera (MAD)*, Merced (MER), Modoc (MOD), San Joaquin (SJQ)*, Shasta (SHA), Stanislaus (STA)*, Tehama (TEH), Tulare (TUL)*
Quads: Name (Quad Code)
Biggs (3912146), Clovis (3611976)*, Cooperstown (3712065)*, Donica Mtn. (4112132), Escalon (3712078)*, Farmington (3712088)*, Hamlin Canyon (3912166), Haystack Mtn. (3712043), Kismet (3712011)*, Le Grand (3712022), Llano Seco (3912158), Logandale (3912242), Montpelier (3712056)*, Murken Bench (4012174), Nord (3912178), Owens Reservoir (3712032), Paulsell (3712066)*, Peters (3712181), Planada (3712033), Richardson Springs NW (3912188), Round Mountain (3611975)*, Sanger (3611965), Shippee (3912156), Vina (3912281), Waterford (3712067)*, Woodlake (3611941)*
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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