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Biological Resources Appendix C Biological Resources The species listed in the following tables come from personal staff observations, information provided by partnering agencies, and texts listed in the reference section. Vegetation Table C-1: Vegetation Communities within LHFO Boundaries Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) Lower 567,107.08 41.74% Shrub- Creosotebush <3,000 Subtropical 2–9 Sonoran microphyllous (Larrea Desertscrub tridentata) White bursage (Ambrosia dumosa) Ocotillo (Fouquieria splendens) Brittlebrush (Encelia farinose) Fourwing saltbrush (Atriplex canescens) Blue palo verde (Parkinsonia florida) Foothill palo verde (Parkinsonia microphylla.) Saguaro (Carnegiea gigantea) Mesquite (Prosopis sp.) Ironwood (Olneya tesota) Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-1 Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) Catclaw acacia (Acacia greggii) Smoketree (Psorothamnus spinosus) Big galleta grass (Pleuraphis rigida thurb) Upper 621,834.72 45.8% Shrub- Blue palo verde 984– Subtropical 3–10 Sonoran microphyllous (Parkinsonia 3,280 Desertscrub florida) Foothill palo verde (Parkinsonia microphylla.) Ironwood (Olneya tesota) Creosotebush (Larrea tridentate) White bursage (Ambrosia dumosa) Ocotillo (Fouquieria splendens) Jojoba (Simmondsia chinensis) Cholla (Opuntia spp.) Fish-hook pincushion (Mammillaria grahamii) Compass cactus (Ferrocactus cylindracens) Saguaro (Carnegiea gigantea) Mohave 73,519.24 5.4% Shrub Creosotebush 980– Warm- 1–8 Desertscrub microphyllous (Larrea 4,000 Temperate tridentata) Joshua tree (Yucca brevifolia) Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-2 Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) All-scale atriplex (Atriplex plycarpa) Brittlebush (Encelia farinosa) Desert holly (Atripex hymenelytra) White burrobrush (Hymenolea salsola) Shadescale (Atriplex confertifolia) Blackbrush (Coleogyne ramosissima) Engleman hedgehog (Echinocereus engelmannii) Silver cholla (Opuntia echinocarpa) Mojave pricklypear (Opuntia phaeacantha) Beavertail cactus (Opuntia basilaris) Many-headed barrel cactus (Echinocactus polycephalus) Big galleta grass (Pleuraphis rigida) Numerous ephemeral forbs Great Basin 254.53 0.02% Tree-Conifer California 5,000– Warm- 5–15 Pinyon- juniper 5,100 Temperate Juniper (Juniperus Woodland californica) Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-3 Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) Singleleaf pinyon pine (Pinus monophylla) Big sagebrush (Artemisia tridentata) Snakeweed (Gutierrezia sarothrae) Rabbitbush (Ericameria spp.) Winterfat (Ceratoides lanata) Cliffrose (Purshia stansburiana) Apache plume (Fallugia paradoxa) Blue gramma (Bouteloua gracilis) Galleta grass (Pleuraphis jamesii) Indian rice grass (Achratherum hymenoidesi) Western wheatgrass (Agropyron smithii) Several muhleys (Muhlenbergia sp.) Dropseeds (Sporobolus sp.) Interior 35,139.24 2.48% Shrub– Shrub live oak 3,280– Warm- 5–15 Chaparral sclerophyll (Quercus 6,070 Temperate turbinella) Skunkbush sumac (Aromatica Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-4 Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) vartrilobata) Silktassel (Garrya flavescens) Desert ceanothus (Ceanothus greggii) Cliffrose (Purshia stansburiana) Arizona rosewood (Vauquelina californica) Sideoats gramma (Bouteloua curtipendula) Hairy gramma (Bouteloua hirsute) Plains lovegrass (Eragrostis intermedia) Wolftail (Lycurus setosus) Single threeawn (Aristida schiedeana). Riparian 5,253.11 0.4% Tree– Mesquite Various Various Various deciduous (Prosopis sp.) Gooddings willow (Salix gooddingii) Netleaf hackberry (Celtis reticulata) Cottonwood (Populus fremontii) Arrow-weed (Pluchea sericea) Quailbush Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-5 Vegetation Acres LHFO Plant Growth Dominant Elevation Climate Precipitation Community Land Form Species (Feet) (inches) (Atriplex lentiformis) Saltcedar (Tamarix sp.) Mesquite/ 43,443.69 3.2% Tree- Mesquite Various Various Various Ephemeral deciduous (Prosopis sp.) Wash Desert star vine Woodland (Brandegea bigelovii) Cat's claw acacia (Acacia greggii) Blue palo verde (Parkinsonia florida), Ironwood (Olneya tesota) Saltcedar (Tamarix sp.) Agriculture 1,765.84 0.13% Urban 1,872.77 0.13% Water 8,198.58 0.6% 1,358,389.1 100% 4 Brown 1982. Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-6 Table C-2: Submerged and Aquatic Plants of Lake Havasu and Lower Colorado River Type Scientific Name Common name Origin Submerged aquatic Ceratophyllum Coon’s tail Native species dermersum Chara sp. Muskgrass Native Potamogeton sp. Pondweed Native Najas marina Spiny naiad Native Myriophyllum sp. Watermilfoil Non-Native Emergent Typha sp. Cattail Native Hydrocotyle sp. Pennywort Native Juncus sp. Rush Native Scirpus olneyi Salt marsh Native sedge Rorippa sp. Watercress Native Ruppia sp. Widgeon grass Native Floating Lemna sp. Duckweed Native Minckly pers comm.; Blair pers comm., 2005. Table C-3: Plants Possibly Found in the LHFO Boundary Family Name Scientific Name Common Name Classification Algae CHARACEAE Nitella hyaline Muskgrass Green Algae Ferns and Fern Allies DRYOPTERIDACEAE Woodsia oregano Oregon woodsia Perennial herb Wood Fern EQUISETACEAE Equisetum hyemale Common scouringrush Horsetail Equisetum funstonii California horsetail PTERIDACEAE Adiantum capillus- Venus hair fern, Maidenhair fern Perennial herb Brake veneris Cheilanthes covillei Coville’s lipfern Perennial herb Cheilanthes parryi Parry’s cloakfern Perennial herb Pallaea mucronata var. Birdsfoot fern Perennial californica Pentagramma Goldback fern Perennial herb triangularis Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-7 Family Name Scientific Name Common Name Classification Gymnosperms CUPRESSACEAE Juniperus californica California juniper Tree Cypress PINACEAE Pinus monophylla Singleleaf pinyon pine Tree Pine EPHEDRACEAE Ephedra faciculata Mohave ephedra Shrub Ephedra Ephedra funereal Death Valley ephedra Shrub Ephedra nevadensis Nevada Morman Tea Shrub Ephedra torreyana Torrey ephedra Shrub Angiosperms (Dicots) AZIOECEAE Sesuvium verrucosum Western sea purslane Perennial herb Carpetweed Trianthema Horse purslane Annual portuacastrum AMARANTHACEAE Amaranthus blitoides Prostrate pigweed Annual Amaranth Amaranthus fimbriants Fringed amaranth Annual Amaranthus retroflexus Red root pigweed Annual Tidestromia lanuginose Espanta vaqueros Annual Tidestromia Honeysweet Perennial herb oblongifolia APIACEAE Bowlesia incana Bowlesia, Pennywort Annual Carrot, Parsley Cymopteris Widewing spring parsley Perennial herb purpurascens Hydrocotyle verticillata Water (whorled) pennywort Perennial herb Lomatium Desert parsley Perennial herb foeniculaceum Lomatium parryi Parrys lomatium Perennial herb Yabea microcarpa California hedge parsley Annual APOCYNACEAE Amsonia tomentosa Woolly amsonia Perennial herb Dogbane Apocynum cannabinum Indian hemp Perennial herb ASCLEPIADACEAE Asclepia erosa Desert milkweed Perennial herb Milkweed Asclepia subulata Rush milkweed Shrub Asclepia albicans White-stemmed milkweed Perennial Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-8 Family Name Scientific Name Common Name Classification Asclepias subverticillata Whorled milkweed Perennial herb Cynanchum utahense Swallowwort Perennial herb Sarcostemma hirtellum Trailing milkweed Perennial vine Sarcostemma Climbing milkweed Perennial vine heterophyllum ASTERACEAE Acamptopappus Goldenhead Shrub Sunflower sphaerocephalus Acourtia wrightii Wrights perezia Shrub Adenophyllum cooperi Coopers glandweed Perennial Adenophyllum San Diego dyssodia Perennial herb porophylloides Ambrosia acanthicarpa Sand bursage, Sandbur Annual Ambrosia ambrosiodes Ambrosia leaved burbrush Shrub Ambrosia dumosa White bursage Shrub Ambrosia eriocentra Woolly bursage Shrub Amphipappus fremontii Chaffbrush Shrub Anisocoma acaulis Scalebud Annual Artemisia carruthii Carruths wormwood Perennial herb Artemisia ludoviciana Western mugwort Perennial herb Aster eatonii Eaton aster Perennial herb Aster exilis Slender aster Annual Aster tephrodes Ash-colored aster Biennial Atrichoseris pltyphylla Gravel ghost, Parachute Plant Annual Baccharis brachyphylla Shortleaf seepwillow Shrub Baccharis emoryi Emory’s seepwillow Shrub Baccharis salicifolia Sticky seepwillow Shrub Baccharis sarothroides Broom baccharis Shrub Baccharis sergiloides Squaw waterweed, desert baccharis Shrub Baccharis vimenea Mulefat Shrub Baileya multiradiata Desert marigold Perennial herb Baileya pleniradiata Woolly desert marigold Annual Bebbia juncea Sweetbbush Shrub Brickellia arguta Spiny brickellbush Shrub Brickellia atractyloides Spiny brickellbush Shrub Brickellia califonica California brickellbush Shrub Brickellia desertorum Desert brickellbush Shrub Lake Havasu Field Office May 2007 Record of Decision/Resource Management Plan C-9 Family Name Scientific Name Common Name Classification Brickellia incana Woolly brickellbush Shrub Brickellia longifolia Willowleaf brickellbush Shrub Brickellia oblongifolia Mohave brickellbush Perennial
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