New York

• Albany 36001
  1,960 taxa Open ↗
• Allegany 36003
  637 taxa Open ↗
• Bronx 36005
  2,098 taxa Open ↗
• Broome 36007
  421 taxa Open ↗
• Cattaraugus 36009
  1,554 taxa Open ↗
• Cayuga 36011
  1,055 taxa Open ↗
• Chautauqua 36013
  856 taxa Open ↗
• Chemung 36015
  1,296 taxa Open ↗
• Chenango 36017
  856 taxa Open ↗
• Clinton 36019
  943 taxa Open ↗

Showing 4,201–4,250 of 4,587.

• 
  Thelypteris palustris Schott Native THPA

  eastern marsh fern · Thelypteridaceae 62 counties
• 
  Thelypteris palustris Schott var. pubescens (G. Lawson) Fernald Native THPAP

  eastern marsh fern · Thelypteridaceae 62 counties
• 
  Thelypteris simulata (Davenport) Nieuwl. Native THSI2

  bog fern · Thelypteridaceae 23 counties
• 
  Thermopsis villosa (Walter) Fernald & B.G. Schub. Native THVI

  Aaron's rod · Fabaceae 4 counties
• 
  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae 1 county
• 
  Thinopyrum pycnanthum (Godr.) Barkworth Introduced THPY4

  tick quackgrass · Poaceae 1 county
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae 38 counties
• 
  Thuidium delicatulum (Hedw.) Schimp. Native THDE10

  delicate thuidium moss · Thuidiaceae 2 counties
• 
  Thuja occidentalis L. Native THOC2

  arborvitae · Cupressaceae 38 counties
• 
  Thymus pulegioides L. Introduced THPU5

  lemon thyme · Lamiaceae 28 counties
• 
  Thymus vulgaris L. Introduced THVU

  garden thyme · Lamiaceae 2 counties
• 
  Tiarella cordifolia L. Native TICO

  heartleaf foamflower · Saxifragaceae 36 counties
• 
  Tiarella cordifolia L. var. cordifolia Native TICOC2

  heartleaf foamflower · Saxifragaceae 34 counties
• 
  Tidestromia lanuginosa (Nutt.) Standl. Native TILA2

  woolly tidestromia · Amaranthaceae 1 county
• 
  Tilia americana L. Native TIAM

  American basswood · Tiliaceae 42 counties
• 
  Tilia americana L. var. americana Native TIAMA

  American basswood · Tiliaceae 5 counties
• 
  Tilia americana L. var. heterophylla (Vent.) Loudon Native TIAMH

  American basswood · Tiliaceae 10 counties
• 
  Tilia cordata Mill. Introduced TICO2

  littleleaf linden · Tiliaceae 6 counties
• ⚘
  Tilia ×europaea L. (pro sp.) [cordata × platyphyllos] Introduced TIEU4

  common linden · Tiliaceae 3 counties
• 
  Tipularia discolor (Pursh) Nutt. Native TIDI

  crippled cranefly · Orchidaceae 7 counties
• 
  Torilis arvensis (Huds.) Link Introduced TOAR

  spreading hedgeparsley · Apiaceae 1 county
• 
  Torilis japonica (Houtt.) DC. Introduced TOJA

  erect hedgeparsley · Apiaceae 11 counties
• 
  Torilis leptophylla (L.) Rchb. f. Introduced TOLE2

  bristlefruit hedgeparsley · Apiaceae 1 county
• 
  Torreyochloa pallida (Torr.) Church Native TOPA6

  pale false mannagrass · Poaceae 50 counties
• 
  Torreyochloa pallida (Torr.) Church var. fernaldii (Hitchc.) Dore ex Koyama & Kawano Native TOPAF

  Fernald's false mannagrass · Poaceae 34 counties
• 
  Torreyochloa pallida (Torr.) Church var. pallida Native TOPAP

  pale false mannagrass · Poaceae 37 counties
• 
  Tortula muralis Hedw. Native TOMU

  tortula moss · Pottiaceae 2 counties
• 
  Tortula ruralis (Hedw.) G. Gaertn., B. Mey. & Scherb. Native TORU70

  tortula moss · Pottiaceae 1 county
• 
  Toxicodendron radicans (L.) Kuntze Native TORA2

  eastern poison ivy · Anacardiaceae 40 counties
• 
  Toxicodendron radicans (L.) Kuntze ssp. radicans Native TORAR

  eastern poison ivy · Anacardiaceae 34 counties
• 
  Toxicodendron rydbergii (Small ex Rydb.) Greene Native TORY

  western poison ivy · Anacardiaceae 2 counties
• 
  Toxicodendron vernix (L.) Kuntze Native TOVE

  poison sumac · Anacardiaceae 31 counties
• 
  Tradescantia occidentalis (Britton) Smyth Native TROC

  prairie spiderwort · Commelinaceae 1 county
• 
  Tradescantia occidentalis (Britton) Smyth var. occidentalis Native TROCO

  prairie spiderwort · Commelinaceae 1 county
• 
  Tradescantia ohiensis Raf. Native TROH

  bluejacket · Commelinaceae 16 counties
• 
  Tradescantia subaspera Ker Gawl. Native TRSU2

  zigzag spiderwort · Commelinaceae 1 county
• 
  Tradescantia subaspera Ker Gawl. var. montana (Shuttlw. ex Britton) E.S. Anderson & Woodson Native TRSUM

  zigzag spiderwort · Commelinaceae 1 county
• 
  Tradescantia virginiana L. Native TRVI

  Virginia spiderwort · Commelinaceae 15 counties
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 16 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 17 counties
• 
  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae 40 counties
• ⚘
  Tragopogon ×neohybridus Farw. [porrifolius × pratensis] Introduced TRNE7

  goatsbeard · Asteraceae 2 counties
• 
  Tragus berteronianus Schult. Introduced TRBE

  spiked bur grass · Poaceae 1 county
• 
  Tragus racemosus (L.) All. Introduced TRRA

  stalked bur grass · Poaceae 3 counties
• 
  Trapa natans L. Introduced TRNA

  water chestnut · Trapaceae 12 counties
• 
  Triadenum fraseri (Spach) Gleason Native TRFR

  Fraser's marsh St. Johnswort · Clusiaceae 24 counties
• 
  Triadenum virginicum (L.) Raf. Native TRVI2

  Virginia marsh St. Johnswort · Clusiaceae 39 counties
• 
  Triantha glutinosa (Michx.) Baker Native TRGL5

  sticky tofieldia · Liliaceae 5 counties
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 7 counties
• 
  Trichloris crinita (Lag.) Parodi Native TRCR9

  false Rhodes grass · Poaceae 1 county