Flora of Southwest Nature Preserve (SWNP), Arlington Plant List Compiled by Jeff Quayle, contributions by Jeff Quayle-JQ (CTMN), Sonnia Hill-SH, Jan Miller-JM (CTMN), Bob O’Kennon- RO (BRIT) & Jim Varnum-JV (NTMN) SWNP ID: RO=Bob O’Kennon, JQ=Jeff Quayle, JV=Jim Varnum, JM=Jan Miller, RN=Robert Neill Updated 21 February 2016 426 species SWNP -Arlington FLOWER STATE/FED SWNP THORA FAMILY OLD FAMILY LATIN NAME COMMON NAME TYPE BLOOM PERIOD SWNP COLOR RANK ID HART Acanthaceae Dyschoriste linearis var. linearis Snake Herb NP ++++5678910++++ Light Purple x RO Acanthaceae Ruellia humilis Prairie Petunia NP +++456789++++++ Light Purple x RO Adoxaceae Caprifoliaceae Sambucus nigra ssp. Elderberry NP ++++56+++++++++ White x JQ canadensis Adoxaceae Caprifoliaceae Viburnum rufidulum Rusty Blackhaw NP ++34+++++++++++ White x JQ Amaranthaceae Alternanthera philoxeroides Alligator Weed IP ++345678+++++++ Silvery white x JV Amaranthaceae Amaranthus tuberculatus=rudis Tamarix Amaranth NA +++45678910++++ Green/White x JV Amaranthaceae Chenopodiaceae Chenopodium album Lambsquarters IA +++456789++++++ White x JQ, JV, ? RO Amaranthaceae Chenopodiaceae Chenopodium berlandieri var. Pit-Seed Goosefoot NA ++++++789++++++ x RO, JQ ? berlandieri Amaranthaceae Chenopodiaceae Chenopodium murale Nettleleaf Goosefoot IA ++++++789++++++ ? JQ Amaranthaceae Chenopodiaceae Chenopodium Mapleleaf Goosefoot NA +++++678+++++++ ? JQ, JV simplex=hybridum var. gigantospermum Amaranthaceae Chenopodiaceae Dysphania Wormseed IAP +++++++891011++ White x RO, ambrosioides=Chenopodium JQ, JV Amaranthaceae Froelichia floridana Field Snake Cotton NA +++++678910++++ White x RO, JQ x Amaranthaceae Froelichia gracilis Slender Snake Cotton NA +++++678910++++ White x RO x Amaryllidaceae Liliaceae Narcissus pseudonarcissus Daffodil IP +F3++++++++++++ Yellow x Amaryllidaceae Alliaceae=Liliaceae Nothoscordum bivalve Crow-Poison NP +F345+++910++++ White x Anacardiaceae Rhus copallinum Flameleaf Sumac NP +++++67++++++++ Inconspicuous x RO, JQ x Anacardiaceae Rhus glabra Smooth Sumac NP ++++5++++++++++ Inconspicuous x RO, JQ x Anacardiaceae Toxicodendron pubescens Atlantic Poison Oak/Ivy NP +++45++++++++++ Inconspicuous x RO x (fruits white-yellowish gray, leaflets w/ broad, brunt apex) Anacardiaceae Toxicodendron radicans ssp. Eastern Poison Ivy NP +++45++++++++++ White x JQ negundo (fruits white-yellowish gray, leaflets w/ narrowed apex) Apiaceae Ammoselinum popei Plains Sand Parsley NA ++345++++++++++ White x RO Apiaceae Chaerophyllum tainturieri var. Smooth Chervil NA ++34+++++++++++ White x RO, tainturieri JQ, JV Apiaceae Daucus pusillus Southwestern Carrot IA +++456+++++++++ White x JQ Apiaceae Limnosciadium pumilum Prairie Dogshade NA ++++56+++++++++ White ? RJO Apiaceae Polytaenia nuttallii Nuttall's Prairie Parsley NP +++45++++++++++ Yellow x RO, JQ Apiaceae Ptilimnium nuttallii Nuttall's Mock Bishop's NA +++4567++++++++ White x RO Weed Apiaceae Sanicula canadensis Canada Sanicle NP +++456+++++++++ White x RO, JQ Apiaceae Spermolepis divaricata Forked Scaleseed NA +++456+++++++++ White x RO Apiaceae Spermolepis echinata Bristly Scaleseed NA ++345++++++++++ White x RO Apiaceae Spermolepis inermis Spreading Scaleseed NA +++45++++++++++ White x RO Apiaceae Torilis arvensis Hedge Parsley IA +++456+++++++++ White x JQ Apiaceae Torilis nodosa Knotted Hedge-Parsley IA +++456+++++++++ White x RO Apocynaceae Apocynum cannabinum Dogbane NP +++4567++++++++ White x JQ, JV Apocynaceae Asclepidaceae Asclepias asperula ssp. Antelope Horns NP +++45678910++++ White x JQ capricornu 5/30/15 Apocynaceae Asclepidaceae Asclepias tuberosa ssp. interior Butterfly Weed NP ++++567++++++++ Yellowish- x JM x Orange Apocynaceae Asclepidaceae Asclepias verticillata Whorled Milkweed NP ++++567++++++++ White x RO, JQ x Apocynaceae Asclepidaceae Asclepias viridis Green Milkweed NP +++456+++++++++ Green x JQ, RO Apocynaceae Asclepidaceae Gonolobus suberosus=Matelea Anglepod NP ++++56+++++++++ Purple/Brown x RO gonocarpus Apocynaceae Asclepidaceae Matelea cynanchoides Milkvine NP +++45678+++++++ Dark Greenish x JQ, JV x Brown Aquifoliaceae Ilex decidua Possum Haw NP ++345++++++++++ White x JQ Aquifoliaceae Ilex vomitoria Yaupon NP +++4+++++++++++ White x RO x Araliaceae Apiaceae Hydrocotyle verticullata var. Umbrella Pennywort NP ++++5678910++++ Yellowish- x RO verticullata Green/White Asparagaceae Agavaceae Yucca gloriosa var. recurvifolia Curve Leaf Yucca NP ++++56+++++++++ White x JQ Asparagaceae Agavaceae Yucca necopina Glen Rose Yucca NPE- ++++5++++++++++ White S1S2 x RO, JQ x NCT Asteraceae Achillea millefolium White Yarrow NP +++45++++++++++ White x JQ Asteraceae Amblyolepis setigera Huisache Daisy NA ++3456+++++++++ Yellow x 11/2 JQ Asteraceae Ambrosia artemisiifolia Common Ragweed NA +++++++891011++ Inconspicuous x JV Asteraceae Ambrosia Western Ragweed NP +++++++891011++ Inconspicuous x JQ x psilostachya=cumanensis Asteraceae Ambrosia trifida Giant Ragweed NP +++++++891011++ Inconspicuous x JV Asteraceae Antennaria parlinii ssp. fallax Large-Leaf Pussy Toes NP ++34+++++++++++ Grayish white x JQ Asteraceae Aphanostephus skirrhobasis Arkansas Lazy Daisy NA +++456+++++++++ White x RO Asteraceae Aster ericoides var. Heath Aster NP ++++++++910++++ White x JV ericoides=Symphyotrichum Asteraceae Baccharis neglecta Roosevelt-Weed NP ++++++++91011++ White x JQ Asteraceae Baccharis texana Texas Baccharis NP +++++++8910++++ White S4 x RO Asteraceae Bidens frondosa Beggar Ticks NA ++++++++910++++ Yellow x RO Asteraceae Bradburia Soft Golden Aster NA ++++5678910++++ Yellow x RO x pilosa=Heterotheca=Chrysopsis Asteraceae Carduus nutans Musk-Thistle IA +++456789++++++ Pink/Purple x JQ 5/30/15 Asteraceae Chaetopappa asteroides Least Aster NA ++3456+++++++++ White x JQ x Asteraceae Cirsium texanum Southern Thistle NP +++456+++++++++ Purple x JQ Asteraceae Cirsium undulatum Wavy-Leaf Thistle NP ++++567++++++++ Pink x JQ, JV Asteraceae Conyza canadensis var. Hairy Horseweed NA ++++5678910++++ White x JV canadensis=Erigeron Asteraceae Coreopsis lanceolata Lanceleaf Coreopsis NP +++45++++++++++ Yellow x JQ, RJO Asteraceae Coreopsis tinctoria Plains Coreopsis NA ++++56789++++++ Yellow x JQ, RJO Asteraceae Crepis pulchra Showy Hawk's Beard IA ++++45+++++++++ Yellow x RO, JV x Asteraceae Croptilon hookerianum var. Scratch Daisy NA ++++++78910++++ Yellow x RO validum Asteraceae Diaperia candida=Evax Silver Evax NA +++45++++++++++ Inconspicuous S3 x RO Asteraceae Engelmannia peristenia Engelmann's Daisy NP JF3456+++++++++ Yellow x JQ Asteraceae Erigeron strigosus var. Prairie Fleabane NA +++456+++++++++ White S2 x RO x strigosus Asteraceae Eupatorium serotinum White Boneset NP +++++67891011++ White x JQ Asteraceae Facelis retusa Facelis IA +++45++++++++++ Inconspicuous x RO, JQ Asteraceae Gaillardia aestivalis Prairie Gaillardia NA ++++567891011++ Red/Yellow x RO, JV x Asteraceae Gamochaeta Pennsylvania Cudweed NA ++3456+++++++++ Whitish Gray x JQ pensylvanica=Gnaphalium peregrinum Asteraceae Gamochaeta Spoon-Leaf Cudweed NA +++45++++++++++ Whitish Gray x RO, JV purpurea=Gnaphalium purpureum Asteraceae Grindelia Saw-Leaf Daisy NA ++++++7891011++ Yellow x JQ ciliata=papposa=Prionopsis ciliata Asteraceae Gutierrezia texana var. texana Texas Broomweed NP ++++++7891011++ Yellow x JQ Asteraceae Helenium amarum var. amarum Yellow Bitterweed NA ++++567891011++ Yellow x JQ x Asteraceae Helianthus annuus Common Sunflower NA ++++567891011++ Yellow x RO Asteraceae Helianthus maximiliani Maximilian Sunflower NP +++++67891011++ Yellow x JV Asteraceae Heterotheca subaxillaris Camphorweed NA JF34567891011++ Yellow x JQ x Asteraceae Hymenopappus artemisiifolius Ragweed Woollywhite NB +++456+++++++++ White x JQ x var. artemisiifolius Asteraceae Hypochaeris glabra Cat's Ear IA +F345++++++++++ Yellow x JQ Asteraceae Iva annua Marshelder NA ++++++++91011++ White/Brown x RO Asteraceae Iva asperifolia var. angustifolia Narrow-Leaf Marshelder NA ++++++++91011++ White/Brown x RO Asteraceae Krigia virginica Carolina Dwarf Dandelion NA ++34+++++++++++ Yellow x RO, JQ x Asteraceae Lactuca canadensis Wild Lettuce NB ++++5678+++++++ White x RO Asteraceae Lactuca floridana Woodland Lettuce NA +++++++891011++ White x RO, JQ x Asteraceae Lactuca ludoviciana Western Wild Lettuce NB +++45678+++++++ Yellowish x RO Asteraceae Lactuca serriola Prickly Lettuce IA +++45678+++++++ Yellow x RO Asteraceae Liatris punctata var. mucronata Narrow-Leaf Gayfeather NP +++++++891011++ Lavender x JQ Asteraceae Packera obovata Golden Groundsel NP +F34+++++++++++ Yellow x RO, JV Asteraceae Packera plattensis=Senecio Prairie Groundsel NB ++345++++++++++ Yellow x JQ Asteraceae Packera tampicana=Senecio Groundsel NA ++345++++++++++ Yellow x RO Asteraceae Palafoxia callosa Small Palafoxia NA ++++567891011++ Pink x RO Asteraceae Pluchea odorata Marsh Fleabane NA +++++++891011++ Pink x RO Asteraceae Pseudognaphalium obtusifolium Fragrant Cudweed NA ++++++7891011++ White x JQ Asteraceae Pyrrhopappus carolinianus Carolina False Dandelion NA +++456+++++++++ Yellow x JQ x Asteraceae Pyrrhopappus Texas Dandelion NA ++3456+++++++++ Yellow x RO pauciflorus=multicaulis Asteraceae Ratibida columnifera Mexican-Hat NP +++45678910++++ Red/Yellow x Asteraceae Rudbeckia Clasping Coneflower NA ++++5++++++++++ Yellow x JQ amplexicaulis=Dracopis 5/30/15 Asteraceae Rudbeckia hirta var. Black-Eyed-Susan NA ++++567++++++++ Yellow x x pulcherrima Asteraceae Senecio vulgaris Common Groundsel IA JF345++++++++++ Yellow x JQ Asteraceae Silphium radula var. radula Rough-Stem Rosenweed NP +++++67++++++++