Taxon Details
Tuctoria greenei
Greene's tuctoria
View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist
©2008 F. Gauna |
©2008 Heather Davis |
©2008 F. Gauna |
Taxon Summary:
Tuctoria greenei, commonly known as Greene's tuctoria, is a annual herb in the Poaceae that is found only in California. It occurs within Vernal pools, growing at elevations from 30 to 1070 meters. Tuctoria greenei is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Tuctoria greenei (Vasey) J. Reeder |
||
|
Common Name: Greene's tuctoria |
||
| Family: | Poaceae | |
| Element Code: | PMPOA6N010 | |
| USDA Plants Symbol: | TUGR | |
|
Synonyms/Other Names: |
||
| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
|
| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FE (1997-03-26) |
| State List: | CR (1979-09-01) |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| Other Status: | |
|
CRPR Changes: |
|
| Add Date: | 1974-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: May-Jul(Sep)
|
||||||||||||||
|
Elevation:
30 - 1070 meters 100 - 3510 feet |
||||||||||||||
General Habitats:
|
||||||||||||||
| Microhabitat Details: | ||||||||||||||
|
Microhabitat:
|
||||||||||||||
|
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% |
| Development | 2 | 4% |
| Altered flood/tidal/hydrologic regime | 2 | 4% |
| Biocides | 1 | 2% |
| Other | 1 | 2% |
| Road/trail construction/maint. | 1 | 2% |
| Surface water diversion | 1 | 2% |
| Mining | 1 | 2% |
| 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:
|
|||||||||||||
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel