Harris County

Showing 251–300 of 1,387.

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  Cirsium horridulum Michx. Native CIHO2

  yellow thistle · Asteraceae
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  Cirsium horridulum Michx. var. horridulum Native CIHOH

  yellow thistle · Asteraceae
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  Citrus ×aurantium L. (pro sp.) [maxima × reticulata] Introduced CIAU8

  sour orange · Rutaceae
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  Cladium mariscus (L.) Pohl Native CLMA10

  swamp sawgrass · Cyperaceae
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  Cladium mariscus (L.) Pohl ssp. jamaicense (Crantz) Kük. Native CLMAJ

  Jamaica swamp sawgrass · Cyperaceae
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  Clematis crispa L. Native CLCR

  swamp leather flower · Ranunculaceae
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  Clematis pitcheri Torr. & A. Gray Native CLPI

  bluebill · Ranunculaceae
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  Clematis pitcheri Torr. & A. Gray var. pitcheri Native CLPIP

  bluebill · Ranunculaceae
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  Clematis reticulata Walter Native CLRE

  netleaf leather flower · Ranunculaceae
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  Cleomella angustifolia Torr. Native CLAN

  narrowleaf rhombopod · Capparaceae
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  Clitoria mariana L. Native CLMA4

  Atlantic pigeonwings · Fabaceae
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  Cnidoscolus texanus (Müll. Arg.) Small Native CNTE

  Texas bullnettle · Euphorbiaceae
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  Cocculus carolinus (L.) DC. Native COCA

  Carolina coralbead · Menispermaceae
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  Coelorachis cylindrica (Michx.) Nash Native COCY

  cylinder jointtail grass · Poaceae
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  Commelina erecta L. Native COER

  whitemouth dayflower · Commelinaceae
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  Commelina virginica L. Native COVI3

  Virginia dayflower · Commelinaceae
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  Conium maculatum L. Introduced COMA2

  poison hemlock · Apiaceae
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  Conoclinium coelestinum (L.) DC. Native COCO13

  blue mistflower · Asteraceae
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  Convolvulus arvensis L. Introduced COAR4

  field bindweed · Convolvulaceae
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  Convolvulus equitans Benth. Native COEQ

  Texas bindweed · Convolvulaceae
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  Conyza bonariensis (L.) Cronquist Introduced COBO

  asthmaweed · Asteraceae
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  Conyza canadensis (L.) Cronquist Native COCA5

  Canadian horseweed · Asteraceae
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  Cooperia drummondii Herb. Native CODR2

  evening rainlily · Liliaceae
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  Corallorhiza wisteriana Conrad Native COWI5

  spring coralroot · Orchidaceae
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  Coreopsis basalis (A. Dietr.) S.F. Blake Native COBA2

  goldenmane tickseed · Asteraceae
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  Coreopsis grandiflora Hogg ex Sweet Native COGR5

  largeflower tickseed · Asteraceae
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  Coreopsis grandiflora Hogg ex Sweet var. longipes (Hook.) Torr. & A. Gray Native COGRL

  largeflower tickseed · Asteraceae
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  Coreopsis lanceolata L. Native COLA5

  lanceleaf tickseed · Asteraceae
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  Coreopsis nuecensoides E.B. Sm. Native CONU6

  Rio Grande tickseed · Asteraceae
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  Coreopsis tinctoria Nutt. Native COTI3

  golden tickseed · Asteraceae
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  Coreopsis tinctoria Nutt. var. tinctoria Native COTIT

  golden tickseed · Asteraceae
• 
  Cornus drummondii C.A. Mey. Native CODR

  roughleaf dogwood · Cornaceae
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  Cornus florida L. Native COFL2

  flowering dogwood · Cornaceae
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  Cornus racemosa Lam. Native CORA6

  gray dogwood · Cornaceae
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  Coronopus didymus (L.) Sm. Introduced CODI6

  lesser swinecress · Brassicaceae
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  Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. Introduced COSE4

  Uruguayan pampas grass · Poaceae
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  Corydalis micrantha (Engelm. ex A. Gray) A. Gray Native COMI2

  smallflower fumewort · Fumariaceae
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  Corydalis micrantha (Engelm. ex A. Gray) A. Gray ssp. australis (Chapm.) G.B. Ownbey Native COMIA2

  smallflower fumewort · Fumariaceae
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  Crataegus marshallii Eggl. Native CRMA5

  parsley hawthorn · Rosaceae
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  Crataegus mollis Scheele Native CRMO2

  downy hawthorn · Rosaceae
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  Crataegus spathulata Michx. Native CRSP

  littlehip hawthorn · Rosaceae
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  Crataegus texana Buckley Native CRTE2

  Texas hawthorn · Rosaceae
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  Crataegus viridis L. Native CRVI2

  green hawthorn · Rosaceae
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  Crataegus viridis L. var. viridis Native CRVIV2

  green hawthorn · Rosaceae
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  Crinum americanum L. Native CRAM2

  seven sisters · Liliaceae
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  Crinum bulbispermum (Burm. f.) Milne-Redhead & Schweickerdt Introduced CRBU2

  hardy swamplily · Liliaceae
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  Croptilon divaricatum (Nutt.) Raf. Native CRDI17

  slender scratchdaisy · Asteraceae
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  Croton argyranthemus Michx. Native CRAR2

  healing croton · Euphorbiaceae
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  Croton capitatus Michx. Native CRCA6

  hogwort · Euphorbiaceae
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  Croton capitatus Michx. var. lindheimeri (Engelm. & A. Gray) Müll. Arg. Native CRCAL2

  Lindheimer's hogwort · Euphorbiaceae