Plant Assessment Form

Evaluated on:

List committee review date:

Re-evaluation date:


No list committee members listed

General Comments

No general comments for this species

Table 2. Criteria, Section, and Overall Scores

Overall Score? Limited
Alert Status? No Alert
Documentation? 0.5 out of 5
Score Documentation
1.1 ?Impact on abiotic ecosystem processes Reviewed Scientific Publication
Four-part score Total Score
Could not calculate
1.2 ?Impact on plant community
1.3 ?Impact on higher trophic levels
1.4 ?Impact on genetic integrity
2.1 ?Role of anthropogenic and natural disturbance in establishment
Total Points
0 Total Score D
2.2 ?Local rate of spread with no management
2.3 ?Recent trend in total area infested within state
2.4 ?Innate reproductive potential
(see Worksheet A)
2.5 ?Potential for human-caused dispersal
2.6 ? Potential for natural long-distance dispersal
2.7 ?Other regions invaded
3.1 ?Ecological amplitude/Range
(see Worksheet C)
Total Score No score calculated
3.2 ?Distribution/Peak frequency
(see Worksheet C)
Reviewed Scientific Publication

Table 3. Documentation

Scores are explained in the "Criteria for Categorizing Invasive Non-Native Plants that Threaten Wildlands".

Section 1: Impact
Question 1.1 Impact on abiotic ecosystem processes? Reviewed Scientific Publication
Identify ecosystem processes impacted:

Sources of information:

Question 1.2 Impact on plant community composition,
structure, and interactions?
Identify type of impact or alteration:

Sources of information:

Question 1.3 Impact on higher trophic levels?
Identify type of impact or alteration:

Sources of information:

Question 1.4 Impact on genetic integrity?

Sources of information:

Section 2: Invasiveness
Question 2.1 Role of anthropogenic and natural disturbance
in establishment?
Describe role of disturbance:

Sources of information:

Question 2.2 Local rate of spread with no management?
Describe rate of spread:

Sources of information:

Question 2.3 Recent trend in total area infested within state?
Describe trend:

Sources of information:

Question 2.4 Innate reproductive potential?
Describe key reproductive characteristics:

Sources of information:

Question 2.5 Potential for human-caused dispersal?
Identify dispersal mechanisms:

Sources of information:

Question 2.6 Potential for natural long-distance dispersal?
Identify dispersal mechanisms:

Sources of information:

Question 2.7 Other regions invaded?
Identify other regions:

Sources of information:

Section 3: Distribution
Question 3.1 Ecological amplitude/Range?

Sources of information:

Question 3.2 Distribution/Peak frequency? Reviewed Scientific Publication
Describe distribution:

Sources of information:

Worksheet A - Innate reproductive potential

Reaches reproductive maturity in 2 years or less Unknown
Dense infestations produce >1,000 viable seed per square meter Unknown
Populations of this species produce seeds every year. Unknown
Seed production sustained over 3 or more months within a population annually Unknown
Seeds remain viable in soil for three or more years Unknown
Viable seed produced with both self-pollination and cross-pollination Unknown
Has quickly spreading vegetative structures (rhizomes, roots, etc.) that may root at nodes Unknown
Fragments easily and fragments can become established elsewhere Unknown
Resprouts readily when cut, grazed, or burned Unknown
Total points: 0
Total unknowns: 9
Total score: U?

Related traits:

Worksheet B - Arizona Ecological Types is not included here

Worksheet C - California Ecological Types

(sensu Holland 1986)
Major Ecological Types Minor Ecological Types Code?
Marine Systemsmarine systems
Freshwater and Estuarine lakes, ponds, reservoirs
Aquatic Systemsrivers, streams, canals
Scrub and Chaparralcoastal bluff scrub
coastal scrub
Sonoran desert scrub
Mojavean desert scrub (incl. Joshua tree woodland)
Great Basin scrub
chenopod scrub
montane dwarf scrub
Upper Sonoran subshrub scrub
Grasslands, Vernal Pools, Meadows, and other Herb Communitiescoastal prairie
valley and foothill grassland
Great Basin grassland
vernal pool
meadow and seep
alkali playa
pebble plain
Bog and Marshbog and fen
marsh and swamp
Riparian and Bottomland habitatriparian forest
riparian woodland
riparian scrub (incl.desert washes)
Woodlandcismontane woodland
piñon and juniper woodland
Sonoran thorn woodland
Forestbroadleaved upland forest
North Coast coniferous forest
closed cone coniferous forest
lower montane coniferous forest
upper montane coniferous forest
subalpine coniferous forest
Alpine Habitatsalpine boulder and rock field
alpine dwarf scrub
Amplitude (breadth): -
Distribution (highest score): -

Infested Jepson Regions

Click here for a map of Jepson regions

  • Central West
  • Sierra Nevada
  • Southwest