Common Name Scientific Name Acanthus Family Acanthaceae
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Bastrop Annuals and Perennials As of February 15, 2014 This checklist of the vascular plants of Bastrop County is primarily based on the collections in the herbarium at the Plant Resource Center (PRC), University of Texas, Austin. Additional records were added from the USDA files, historic plant lists from Bastrop and Buescher State Parks (including the Stengl Research Station), recent McKinney Roughs Natural Area bio-surveys, and from the Bill Carr post-fire survey in 2012. Special codes used: asterisk (*) USDA, percent (%) Bill Carr, pound sign (#) added to the PRC from surveys. Rare plants listed from Rare Plants of Texas by Poole, et.al. are indicated with an exclamation point (!). New Biota of North Ameaica (BONAP) modern family names have an ampersand (&). Species marked in bold are listed on the Texas Department of Agriculture Noxious Weeds list, on the USDA list, or Introduced. Scientific Name Common Name Acanthaceae Acanthus Family Dicliptera brachiata false mint Dyschoriste linearis snake herb Justicia americana water willow Ruellia caroliniensis Carolina wild petunia Ruellia humilis prairie wild petunia Ruellia nudiflora violet wild petunia Amaranthaceae & Amaranth Family & Alternathera caracasana mat chaffweed Alternathera pungens khakiweed Amaranthus blitoides prostrate pigweed Amaranthus hybridus green amaranth Amaranthus palmeri carelessweed Amaranthus polygonoides tropical amaranth % Amaranthus pubescens pigweed Amaranthus viridis green amaranth % Chenopodium album lamb's quarters Chenopodium ambrosiodes Mexican tea Chenopodium berlandieri pit-seed goosefoot Chenopodium pratericola thickleaf goosefoot Chenopodium simplex mapleleaf goosefoo Chenopodium standleyanum Standley's goosefoot * Cycloma atriplicafolia plains tumbleweed Frolichia floridana field snakecotton Frolichia gracilis slender snakecotton Frolichia latifolia broad-leaf snakecotton Gomphrena neallieyii Nealley’s globe amaranth % Gossypianthus lanuginosus woolly cottonflower Guilleminea densa small matweed * Monolepis nuttallania povertyweed Bastrop County Annuals & Perennials. Prepared by the Lost Pines Chapter of the Texas Master Naturalists 02/21/2014 Page 1 Scientific Name Common Name Apiaceae Carrot Family Bowlesia incana hoary bowlesia Centella erecta spadeleaf # Chaerophyllum tainturieri wild chervil Conium maculatum poison hemlock Cyclospermum leptophyllum slim-lobe celery % Cymopterus macrorhizus bigroot springparsley (wavewing) Daucus pusillus southwest wild carrot Eryngium hookeri Hooker's eryngo Eryngium integrifolium simple-leaf eryngo # Eryngium yuccafolium rattlesnake master Hydrocotyle ranunculoides water pennywort # Hydrocotyle umbellata umbrella pennywort # Hydrocotyle verticillata whorled pennywort Limnosciadium pinnatum Arkansas dogshade Limnosciadium pumillum prairie dogshade * Oxypolis rigidor cowbane # Polytaenia nuttallii Nuttall's prairie parsley Ptlimnium capillaceum threadleaf herbwilliam # Ptlimnium costatum few-leaf herbwilliam # Ptlimnium nuttallii Nuttall's laceflower # Sanicula canadensis blacksnake root Spermolepis divaricata forked scaleseed Spermolepis echinata scaleseed Spermolepis inermis spreading scaleseed Torilis arvensis hedge parsley Trepocarpus aethusae white nymph Apocynaceae & Dogbane & Asclepias amplexicaulis clasping milkweed Asclepias arenaria sand milkweed Asclepias asperula antelope horns Asclepias latifolia broad-leaf milkweed Asclepias linearis slim milkweed Asclepias oenotheroides cluster milkweed Asclepias rubra red milkweed # Asclepias tuberosa butterfly weed Asclepias verticillata whorled milkweed Asclepias viridiflora green comet milkweed Asclepias viridis green milkweed Cynanchum barbigerum bearded swallow-wort Cynanchum laeve bluevine, honeyvine Cynanchum racemosum talayote Funastrum cynanchoides fringed twinevine Matalea gonocarpa anglepod milkvine Matalea reticulatum netted milkvine Bastrop County Annuals & Perennials. Prepared by the Lost Pines Chapter of the Texas Master Naturalists 02/21/2014 Page 2 Scientific Name Common Name Aristolochiaceae Birthwort Family Aristolochia erecta swanflower Asparagaceae & Agave & Manfreda virginica false aloe * Asteraceae Aster Family Achillea millefolium yarrow Ageratina altissimus white snakeroot Ambrosia artemisifolia common ragweed Ambrosia psilostachys western ragweed Ambrosia trifIda giant ragweed Amphiachyris dracunuloides prairie broomweed Antennaria parlinii Parlin's pussytoes Aphanostephus ramosissimus plains doze daisy Aphanostephus skirrhobasis Arkansas lazy daisy Aster lateroflorus calico aster # Astranthium integrifolium entire-leafwestern daisy Baccharis halimifolia eastern baccharis # Berlandiera betonicifolia Texas greeneyes Berlandiera pumila soft greeneyes Bidens bipinnata Spanish needles % Bidens frondosa beggarticks Bidens laevis smooth beggarticks # Boltonia diffusa small doll's daisy # Brickellia eupatorioides false boneset Calymmandra candida silver pigmy cudweed Calyptocarpus vialis horseherb Centaurea americana American star thistle Chaetopappa asteroides common leastdaisy Chaetopappa imberbis awn-less leastdaisy * Chaptalia texana Texas sunbonnets Chrysopsis imberis woolly golden aster Chrysopsis pilosa soft golden aster Chrysopsis texana Texas golden aster Cirsium discolor field thistle Cirsium horridulum yellow thistle Cirsium muticum swamp thistle Cirsium texanum Texas thistle # Conoclinum coelestinum blue mistflower # Conyza canadensis horseweed Coreopsis basalis golden waves Coreopsis linifolia Texas tickseed # Coreopsis nuecensis crown tickseed Coreopsis tinctoria plains tickseed # Coreopsis tripteris tall tickseed Bastrop County Annuals & Perennials. Prepared by the Lost Pines Chapter of the Texas Master Naturalists 02/21/2014 Page 3 Scientific Name Common Name Asteraceae continued Aster Family continued Coreopsis wrightii rock tickseed Croptilon divaricatum scratchdaisy Croptilon hookeriana Hooker's scratchdaisy Croptilon rigidifolium stiff scratchdaisy Diaperia prolifica pygmy cudweed Diaperia verna spring cudweed Dracopis ampleicaulis clasping coneflower * Echinacea angustifolia blacksamson Echinacea purpurea purple coneflower Echinacea sanguinea sanguin purple coneflower Eclipta prostrata pieplant % Elephantopus carolinianus leafy elephantfoot Engelmannia peristenia Engelmann's daisy Erechtites hieracilifolia fireweed # Erigeron geiseri Geiser's fleabane Erigeron philadelphicus Robin's plantain Erigeron procumbens Corpus Christi fleabane Erigeron strigosus prairie fleabane Erigeron tenuis slender fleabane Eupatoriadelphus fistulum joepyeweed Eupatorium capillifolium dogfennel % Eupatorium compositifolium yankeeweed # Eupatorium glaucesens waxy thoroughwort Eupatorium incarnatum trailing boneset Eupatorium linearifolium waxy thoroughwort % Eupatorium perfoliatum perfoliate boneset # Eupatorium rotundifolium round-leaf boneset # Eupatorium semiserratum smallflower boneset * Eupatorium serotinum late-flowering boneset # Eurybia hemisphaerica southern prairie aster % Evax candida silver evax Evax prolifera bighead evax * Evax verna many-stem evax Facelis retusa annual trampweed Gaillardia aestivalis prairie gaillardia Gaillardia amblyodom maroon gaillardia Gaillardia pulchella indian blanket Gaillardia suavis perfume balls Gamochaeta antillana Caribbean everlasting Gamochaeta argyrinea silver everlasting or silver cudweed Gamochaeta falcata narrowleaf purple everlasting % Gamochaeta obtusifolia everlasting Gamochaeta pensylvanica Pennsylvania everlasting Gamochaeta purpurea spoonleaf everlasting Grindelia adenodonta gumweed Bastrop County Annuals & Perennials. Prepared by the Lost Pines Chapter of the Texas Master Naturalists 02/21/2014 Page 4 Scientific Name Common Name Asteraceae continued Aster Family continued Grindelia cilita goldenweed Grindelia lanceolata narrow-leaf gumweed Gutierrezia texana Texas gutierrezia Hedypnois cretica cretan weed Helenium amarum bitterweed Helenium ciliata goldenweed Helenium elegans pretty sneezeweed Helenium microcephalum smallhead sneezeweed Helianthus angustifolius narrow-leaf sunflower # Helianthus annuus common sunflower Helianthus debilis cucumber-leaf Sunflower Helianthus hirsutus hairy sunflower Helianthus maximilliani Maximillian's sunflower Helianthus mollis downy sunflower # Helianthus occidentalis few-leaf sunflower Heterotheca latifolia golden aster Heterotheca mariana Maryland golden astet Heterotheca pilosa beach golden aster Heterotheca subaxillaris camphor daisy Hieracium gronovii hawkweed Hymenopappus artemisiifolius woolly white Hymenopappus carrizoanus ! sandhill woolly white ! Hymenopappus scabiosaeua old plainsman Hymenoxys linearifolia bitterweed Hypochaeris eupatorioides frogbit Hypochaeris glabra smooth cat's ear Iva angustifolia narrow -leaf sump weed % Iva annua marsh elder Krigia cespitosa dwarf dandelion Krigia occidentalis western dwarf dandelion Krigia virginica Virginia dwarf dandelion Krigia wrightii Wright's dwarf dandelion Lactuca florida woodland lettuce Lactuca hirsuta hairy lettuce % Lactuca ludoviciana biannual wild lettuce Lactuca serriola prickly wild lettuce Liatris aspera tall gayfeather Liatris elegans pink-scale gayfeather Liatris mucronata cusp blazing star Liatris punctata dotted blazing star Liatris pycnistachya prairie blazing star Liatris squarrosa squarrose gayfeather Lindheimera texana Texas yellowstar Lygodesmia texana Texas skeletonplant Marshallia caespitosa Barbara's buttons Bastrop County Annuals & Perennials. Prepared by the Lost Pines Chapter of the Texas Master Naturalists 02/21/2014 Page 5 Scientific Name Common Name