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A. Exhibit I, Native Seed List, was derived from the Low Water Use/Drought Tolerant Plant List as known native vegetation. The list is not inclusive of all native vegetation. For alternative selections, refer to Section 5-02.3.2, Native Seeds.
The seed list is established as a guide on how to mix the various types of seeds to provide a varying mix of native plant growth on the
giving it a more natural appearance. The pounds per acre listing is a guide for use by the designer to achieve a minimum growth pattern to the seeded area. Specific rates are based on the seeds that are used in the mix. The seed mix is to be certified by the seed supplier as to the growth coverage projected.
B. The ADWR Low Water Use/Drought Tolerant Plant List is prepared for use within the Tucson Active Management Area (TAMA) by the ADWR.
In order to use plants not listed in ADWR Low Water Use/Drought Tolerant Plant List, the plants are to be approved through the following process.
A. Any person seeking to add or delete a plant or plants from the low water use plant list may submit an application for modification of the list at any time to the Director of the ADWR. The application is made on a form prescribed and furnished by the Director of the ADWR.
B. The ADWR Director reviews each request for modification of the low water use plant list. The Director may request additional information from the applicant and may seek information from other sources as may be necessary to determine whether the list should be modified.
C. If the addition of a plant to the low water use plant list is approved, the ADWR Director will place the plant on a supplemental list as an addendum to the low water use plant list. The supplemental list shall be available upon request from the ADWR.
D. If the ADWR Director approves the deletion of a plant from the Low Water Use/Drought Tolerant Plant List, the deletion from the list will be issued with the annual modified review plant list.
E. The ADWR Director conducts an annual review of the low water use plant list and issues a modified plant list. As a result of the review, the Director may add or delete plants from the list.
The plant and seed lists will be updated as necessary to provide the most current plant list based on Section 5-02.5.2.E.
Exhibit I - Native Seed List
EXHIBIT I: NATIVE SEED LIST
SPECIES | ||
Botanical Name | Common Name | PLS* Rate lbs/acre |
Aristida purpurea (P, W) | Purple Three-Awn | 2.0 |
Plantago insularis (A, C) | Indian Wheat | 3.0 |
Senna covesii (P, W) | Desert Senna | 2.0 |
Sphaeralcea ambigua (P, C/W) | Desert Globe-Mallow | 1.0 |
Sporobolus cryptandrus (P, W) | Sand Dropseed | 1.0 |
Plus choose a minimum of three (3) species from the following six: | ||
Acacia constricta (P, W) | Whitethorn Acacia, Mescat | 2.0 |
Ambrosia (Franseria) deltoidea (P, C) | Triangle-Leaf Bursage | 4.0 |
Atriplex canescens (P, C) | Four-Wing Saltbush | 3.0 |
Encelia farinosa (P, C/W) | Brittlebush | 1.5 |
Haplopappus (Ericameria) laricifolius (P, C/W) | Turpentine Bush | 1.0 |
Larrea tridentata (divaricata) (P, W) | Creosote Bush, Greasewood | 6.0 |
Optional recommended species: | ||
Acacia greggii (P, W) | Cat’s Claw Acacia | 2.0-3.0 |
Atriplex lentiformis (P, C) | Quail Bush | 1.0-2.0 |
Atriplex polycarpa (P, C) | Desert Saltbush | 1.0-3.0 |
Baileya multiradiata (P, C/W) | Desert Marigold | 1.0-2.0 |
Bouteloua curtipendula (P, W) | Sideoats Grama | 2.0 |
Parkinsonia floridum (P, W) | Blue Palo Verde | 2.0-3.0 |
Parkinsonia microphyllum (P, W) | Littleleaf or Foothill Palo Verde | 2.0-3.0 |
Eragrostis intermedia (P, W) | Plains Lovegrass | 1.0 |
Eschscholtzia mexicana (A, C) | Mexican Gold Poppy | 1.0-3.0 |
Leptochloa dubia (P, W) | Green Sprangle-Top | 1.0 |
Phacelia campanularia (A, C) | Desert Canterbury Bells | 1.0-2.0 |
Prosopis velutina (P, W) | Velvet Mesquite | 1.0-2.0 |
Psilostrophe cooperi (P, C/W) | Paper Flower | 1.0-2.0 |
Setaria macrostachya (P, W) | Plains Bristle Grass | 2.0 |
*PLS = Pure Live Seed | ||
KEY: A = Annual; P = Perennial; C = Germinates and thrives in the cool season; W = Germinates and thrives in the warm season; C/W = Germinates and thrives in cool/warm seasons. | ||
NOTE: The cool season in Tucson runs September through March, and the warm season is from March through October. There is an overlap of seasons. | ||
This standard has been prepared for the purpose of establishing the protected native plant list for use with various City of Tucson regulations, in particular Section 7.7, Native Plant Preservation, of the UDC, that either require or regulate native plants.
ALL CACTI | |
Common Name | Latin Name |
Compass Barrel | Ferocactus acanthodes |
Crested or Fan-top Saguaro | Carnegiea gigantea ‘Crested’ |
Desert Night-blooming Cereus | Peniocereus greggi |
Fishhook Barrel | Ferocactus wislezenii |
Needle-spined Pineapple Cactus | Echinomastus erectrocentrus var. erectrocentrus |
*Pima Pineapple Cactus | *Coryphantha scheeri var. robustipina |
Saguaro | Carnegiea gigantea |
TREES OF A MINIMUM SIZE OF FOUR-INCH CALIPER | |
Common Name | Latin Name |
TREES OF A MINIMUM SIZE OF FOUR-INCH CALIPER | |
Common Name | Latin Name |
Arizona Ash | Fraxinus velutina var. velutina or Fraxinus pennsyvanica spp. velutina |
Arizona Black Walnut | Juglans major |
Arizona Sycamore | Platanus racemosa Nutt. var. wrightii |
Blue Palo Verde | Cercidium floridum |
Catclaw Acacia | Acacia greggii var. arizonica |
Desert Elderberry | Sambucus mexicana |
Desert Hackberry | Celtis pallida |
Desert Willow | Chilopsis linearis |
Foothills Palo Verde | Cercidium microphyllum |
Fremont Cottonwood | Populus fremontii sp. fremontii |
Goodding Willow | Salix gooddingii |
Ironwood | Olneya tesota |
Net Leaf Hackberry | Celtis reticulata |
Screwbean Mesquite | Prosopis pubescens |
Western Soapberry | Sapindus saponaria var. drummondii |
Whitethorn Acacia | Acacia constricta |
Velvet Mesquite | Prosopis velutina |
* Denotes plants listed as Endangered or Threatened under the Federal Endangered Species Act (ESA) as of March 24, 1997. Any plants designated by the ESA, as amended, shall be subject to the Section 7.7.3, Applicability (of the Native Plant Preservation ordinance), of the UDC.
SHRUBS OF A MINIMUM SIZE OF THREE FEET IN HEIGHT | |
Common Name | Latin Name |
Catclaw Acacia | Acacia greggii var. arizonica |
Desert Hackberry | Celtis pallida |
Desert Willow | Chilopsis linearis |
Greythorn | Zizyphus obtusifolia var. canescens |
Kearney Condalia | Condalia warnockii var. kearneyana |
Whitethorn Acacia | Acacia constricta |
SUCCULENTS OF A MINIMUM SIZE OF TWO FEET IN HEIGHT | |
Common Name | Latin Name |
Ocotillo | Fouquieria splendens |
Soaptree Yucca | Yucca elata |